1	"Mature leaves reduced to phyllodes; immature bipinnate leaves usually not persisting, although sometimes reappearing; phyllodes always present on the mature plants."	2
1	"Mature leaves bipinnate; phyllodes never or rarely produced."	360
2	"Phyllodes with a distinctly pungent-pointed apex."	3
2	"Phyllodes without pungent-pointed apex."	41
3	"Flowers in ovoid to cylindrical heads >8 mm long (length greater than diam.)."	4
3	"Flowers in ± globose heads (length ± equals diam.) or rarely heads ± ovoid and <7 mm long."	7
4	"Phyllodes decurrent on stems."	"Acacia triptera"
4	"Phyllodes not decurrent on stems (pulvinus usually evident)."	5
5	"Phyllodes regularly whorled, either without or with only 1 prominent longitudinal vein."	"Acacia verticillata"
5	"Phyllodes not or rarely regularly whorled, with 2 or more prominent longitudinal veins."	6
6	"Phyllodes 1.5–4 cm long; flower heads 2–3 cm long, pedunculate; pods ± straight."	"Acacia oxycedrus"
6	"Phyllodes 1–2.5 cm long; flower heads c. 1–1.3 cm long, ± sessile; pods strongly curved."	"Acacia rhigiophylla"
7	"Phyllodes with 2 or more ± equally prominent longitudinal veins."	8
7	"Phyllodes with only 1 longitudinal vein prominent, lateral veins conspicuous or obscure, or veins not apparent."	20
8	"Phyllodes <5 times as long as broad, 0.3–1.5 cm long, asymmetric with a hump on the upper margin."	9
8	"Phyllodes >5 times as long as broad, 1–13 cm long, ± symmetric, sometimesslightly curved but without a conspicuous hump on upper margin."	10
9	"Phyllodes 2–4 mm wide, usually >3 times as long as broad; peduncles 6–12 mm long."	"Acacia amblygona"
9	"Phyllodes 3–8 mm wide, usually <2 times as long as broad; peduncles 2–8 mm long."	"Acacia pravifolia"
10	"Phyllodes terete or at least 4-angled."	11
10	"Phyllodes ± flat."	17
11	"Phyllodes 4–13 cm long, >30 times as long as broad."	12
11	"Phyllodes mostly 1–4 cm long, <25 times as long as broad."	14
12	"Phyllodes with marginal gland adjacent to the pulvinus."	"Acacia rigens"
12	"Phyllodes with marginal gland at least a few mm from the pulvinus."	13
13	"Branchlets ± hairy; peduncles hairy; flowers 5-merous; confined to the Blue Mtns."	"Acacia ptychoclada"
13	"Branchlets ± glabrous; peduncles glabrous; flowers 4-merous; widespread western species."	"Acacia havilandiorum"
14	"Phyllodes in clusters of 2–7 (except on new growth); heads with >50 flowers."	"Acacia tetragonophylla"
14	"Phyllodes usually solitary at nodes; heads with <30 flowers."	15
15	"Phyllodes splayed at the base, leaving an ovate to obovate scar 2–5.5 mm long when lost; heads 17–25-flowered; flower heads pale yellow; peduncles 14–21 mm long."	"Acacia atrox"
15	"Phyllodes not splayed at base, sometimes arising from small stem projections; heads 12–20-flowered; flower heads bright yellow; peduncles 1.5–5 mm long;."	16
16	"Phyllodes with 8 strongly raised lighter-coloured veins; gland near base on swelling; widespread in western districts. (NWP, SWP, NFWP, SFWP)."	"Acacia colletioides"
16	"Phyllodes with c. 20 scarcely raised veins; gland 2–7 mm above base; only recorded in the extreme SW of the State (SFWP)."	"Acacia nyssophylla"
17	"Phyllodes with conspicuous minor veins between prominent longitudinal veins."	18
17	"Phyllodes without minor veins apparent between prominent longitudinal veins."	19
18	"Pods curved to coiled; sepals fused for more than half their length; 1–4 heads in axils; south from the Coonabarabran area."	"Acacia lanigera"
18	"Pods ± straight; sepals free or fused to about half their length; 2–8 heads in axils; north from the Tamworth district."	"Acacia venulosa"
19	"Branchlets ± terete, coarsely hairy; phyllodes with marginal gland adjacent to the pulvinus or gland absent; peduncles 2–6 mm long."	"Acacia bynoeana"
19	"Branchlets distinctly angled, glabrous; phyllodes with marginal gland near the middle of the phyllode; peduncles 10–20 mm long."	"Acacia trinervata"
20	"Phyllodes usually <4 cm long."	21
20	"Phyllodes mostly >4 cm long."	37
21	"Phyllodes >2 mm wide."	22
21	"Phyllodes <2 mm wide."	27
22	"Stipules mostly 5–15 mm long, spinescent and usually persistent."	"Acacia paradoxa"
22	"Stipules if present usually 1–2 mm long, subulate but not spinescent, often caducous."	23
23	"Phyllodes ± triangular, 0.4–1 cm long, with a gland on the upper lobe or angle."	"Acacia gunnii"
23	"Phyllodes ± linear or narrow-elliptic to oblanceolate, >1 cm long, gland usually not as above."	24
24	"Phyllodes and branchlets pubescent; pods densely brownish hairy."	"Acacia aspera"
24	"Phyllodes and branchlets glabrous; pods glabrous or almost so."	25
25	"Branchlets prominently angled, with raised longitudinal ridges; phyllodes terete or 4-angled; flowers 4-merous; heads with 12–30 flowers."	"Acacia genistifolia"
25	"Branchlets ± terete, not conspicuously ridged; phyllodes flat; flowers 5- or rarely 6-merous; heads with 30–60 flowers."	26
26	"Branchlets smooth and ± tessellated, not resinous; peduncles 2–10 mm long; widespread, from Glen Innes to Captains Flat and Gundagai (NT, CT, ST, SWS)."	"Acacia siculiformis"
26	"Branchlets rough, resinous; peduncles 10–20 mm long; confined to the Bourke and Enngonia district (NWP)."	"Acacia maitlandii"
27	"Phyllodes continuous with the stems."	"Acacia continua"
27	"Phyllodes articulate on the stems."	28
28	"At least some phyllodes reflexed or phyllodes crowded on short axillary shoots and appearing clustered at nodes."	29
28	"Phyllodes neither reflexed nor crowded on short axillary shoots and appearing clustered at nodes."	30
29	"Phyllodes 0.5–1 mm wide, 0.6–1.5 cm long; heads 18–30-flowered, lemon yellow; flowers 4-merous; south from Eden district (SC)."	"Acacia aculeatissima"
29	"Phyllodes c. 1 mm wide, 1–4 cm long; heads 50–65-flowered, bright yellow; flowers 5-merous; western species (NWP, NFWP, SFWP)."	"Acacia tetragonophylla"
30	"Branchlets angled or flattened and becoming ribbed, mostly glabrous; phyllodes with a ± prominent raised gland 2–3 mm above base."	"Acacia genistifolia"
30	"Branchlets neither angled or flattened, not ribbed, hairy or glabrous; phyllodes with an inconspicuous basal gland, or gland absent."	31
31	"Phyllodes mostly >2.5 cm long."	32
31	"Phyllodes usually <2.5 cm long."	33
32	"Phyllodes 2.5–7 cm long; pods 2–5 cm long and c. 10 mm wide; flower heads bright yellow; western species (NFWP, SFWP)."	"Acacia carneorum"
32	"Phyllodes 2.5–4 cm long; pods 4–9 cm long, 3–4 mm wide; flower heads pale yellow to cream-coloured; coastal species (NC, CC)."	"Acacia quadrilateralis"
33	"Peduncles 0–3 mm long, shorter than the heads; confined to the Blue Mtns, from Newnes Junction to Lawson (CT)."	"Acacia asparagoides"
33	"Peduncles 7–20 mm long, longer than the heads; widespread species, throughout the State."	34
34	"Phyllodes flat, ± narrow-elliptic, with gland near middle; branchlets resinous."	"Acacia maitlandii"
34	"Phyllodes terete or ± 4-angled, gland absent or near base; branchlets not resinous."	35
35	"Phyllodes ± terete and abruptly contracted to apex; pods only slightly constricted between the seeds; peduncles stout, up to 0.5 mm diam."	"Acacia echinula"
35	"Phyllodes ± 4-angled and tapered evenly from near base to apex; pods strongly constricted between the seeds; peduncles slender, <0.3 mm diam."	36
36	"Phyllodes broader at base (with a gland-angle), often crowded along stems (>5 nodes per cm); stipules usually 1–2 mm long, persistent; flower heads pale yellow to ± white."	"Acacia ulicifolia"
36	"Phyllodes not broadening at base (without a gland-angle), not crowded on stems (usually <5 nodes per cm); stipules usually <1 mm long, not persistent; flower heads bright yellow."	"Acacia brownii"
37	"Phyllodes ± terete or slightly angled, <1.5 mm diam."	38
37	"Phyllodes flattened or 4-angled but not ± terete, 1.5–3 mm wide."	40
38	"Phyllodes and branchlets glabrous; branchlets with yellowish ridges; pods strongly curved, twisted or coiled, strongly constricted between the seeds."	"Acacia rigens"
38	"Phyllodes and branchlets minutely pubescent; branchlets without yellowish ridges; pods straight to curved, not or only slightly constricted between the seeds."	39
39	"Marginal gland near the middle of the phyllode (phyllode often incurved abruptly at gland); flowers 4-merous; widespread western species."	"Acacia havilandiorum"
39	"Marginal gland near base of the phyllode; flowers 5-merous; confined to the Blue Mtns."	"Acacia ptychoclada"
40	"Phyllodes 4-angled, 2.5–7 cm long; pods 2–5 cm long and 8–12 mm wide; western species (NFWP, SFWP)."	"Acacia carneorum"
40	"Phyllodes flattened, 5–10 cm long; pods 4–7 cm long and 3–4 mm wide; Mt George to Bralga Tops (NC, NT)."	"Acacia juncifolia"
41	"Flowers in cylindrical heads (length greater than diam.)."	42
41	"Flowers in ± globose heads (length ± equals diam.)."	98
42	"Flower heads ± ovoid to short-cylindrical, rachis usually <1.5 cm long."	43
42	"Flower heads ± long-cylindrical, rachis mostly >1.5 cm long."	59
43	"Phyllodes ± oblanceolate, 2.5–5 cm long and 2–5 mm wide; peduncles 5–12 mm long; branchlets, phyllodes and pods resinous; chiefly confined to the Dubbo, Mendooran and Gilgandra area."	"Acacia ixodes"
43	"Without the above combination of characters and distribution."	44
44	"Phyllodes <4 cm long."	45
44	"Phyllodes >4 cm long."	49
45	"Phyllodes ± triangular with marginal gland on upper angle."	"Acacia cultriformis"
45	"Phyllodes not triangular, marginal gland near base of phyllode."	46
46	"Pods 7–15 mm wide and glabrous; phyllodes with numerous faint, closely-spaced, non-anastomosing longitudinal veins; widespread on Slopes and plains."	"Acacia aneura"
46	"Pods 3–5 mm wide or if 7–13 mm wide then densely hairy; phyllodes with several longitudinal veins and reticulate between or with only midvein prominent and lateral veins obscure; ST species."	47
47	"Phyllodes glabrous, 2–4 longitudinal veins prominent, lateral veins reticulate; heads 1 or 2 on axillary peduncles 0–2 mm long."	"Acacia alpina"
47	"Phyllodes hairy, only midvein prominent, lateral veins obscure; heads 1–10, usually in axillary racemes with axis 1–5 cm long, peduncles 1–10 mm long."	48
48	"Phyllodes less than twice as long as broad, with an oblique or hooked mucro."	"Acacia costiniana"
48	"Phyllodes twice as long as broad, with a straight mucro."	"Acacia lucasii"
49	"Pods mostly 2–3 cm long and 7–15 mm wide."	"Acacia aneura"
49	"Pods 3–10 cm long and 2–8 mm wide."	50
50	"Phyllodes >4 mm wide."	51
50	"Phyllodes usually <4 mm wide."	53
51	"Phyllodes finely appressed-hairy, ± oblanceolate to obovate; heads 0.5–0.8 cm long, 3–8 in an axillary raceme 1–5 cm long."	"Acacia dorothea"
51	"Phyllodes ± glabrous, elliptic to narrow-elliptic; heads 0.8–3.5 cm long, 1 or 2 in axils of phyllodes or on short axillary axis."	52
52	"Phyllodes with midvein more prominent than other longitudinal veins, narrow-elliptic to ± linear, straight; peduncles 4–10 mm long."	"Acacia subtilinervis"
52	"Phyllodes with 3 longitudinal veins prominent, ± elliptic, ± falcate; peduncles 2–4 mm long."	"Acacia georgensis"
53	"Phyllodes 0.5–1 mm wide, ± compressed-terete, multistriate; west from Nyngan."	54
53	"Phyllodes 1–4 mm wide, ± linear to very narrow-elliptic, faintly striate; widespread, from the coast to inland districts."	55
54	"Pods 2–3 mm long; bark curling off in narrow strips; phyllodes 13–18 cm long; flowers 5-merous."	"Acacia curranii"
54	"Pods 5–7 mm long; bark not curling off in narrow strips; phyllodes 5–16 cm long; flowers 4-merous."	"Acacia burkittii"
55	"Heads 8–15-flowered; flowers 4-merous; southern species (SC, ST, SWS)."	56
55	"Heads 14 to >50-flowered; flowers 5-merous; northern species (NC, NT, NWS, NWP, NFWP)."	57
56	"Flower heads bright yellow; pods hairy; south from Holbrook area (SWS)."	"Acacia phasmoides"
56	"Flower heads pale yellow to yellow; pods glabrous; south of the Tuross R. (SC, ST)."	"Acacia mucronata"
57	"Phyllodes mostly 15–22 cm long; heads usually 14–22-flowered; coast and ranges, north from Bendemeer and east from Inverell district (NC, NT, NWS)."	"Acacia granitica"
57	"Phyllodes usually 4–15 cm long; heads >25-flowered; north from Bourke and Tooraweenah, common in the Pilliga Scrub."	58
58	"Phyllodes usually 8–15 cm long (range 5–21 cm); heads 1–2.5 cm long, >50-flowered, on short axillary axes usually 5–20 mm long; pods 2–3 mm wide; north from Tooraweenah district (NWS, NWP)."	"Acacia caroleae"
58	"Phyllodes usually 4–8 cm long; heads 0.5–1.5 cm long, 25–35-flowered, on axillary peduncles 3–5 mm long; pods 4–6 mm wide; north and west from Bourke district (NWP, NFWP)."	"Acacia sibirica"
59	"Phyllodes terete to ± linear, >15 times longer than broad, most phyllodes 1–6 mm wide (range 1–10 mm wide); either no prominent longitudinal veins obvious (though longitudinal striations sometimes present in dried material) or 1 or more longitudinal veins obvious."	60
59	"Phyllodes neither terete nor ± linear, ± oblong to narrow-elliptic or oblanceolate, <15 times longer than broad, mostly >6 mm wide (range 2–40 mm wide); with 1 or more prominent longitudinal veins;."	72
60	"Phyllodes regularly 1–3 mm wide and distinctly grey or grey-green."	61
60	"Phyllodes regularly 2–8 mm wide, rarely distinctly greyish, usually green."	63
61	"Phyllodes 4–10 cm long, glabrous; pods 7–15 mm wide, ± flat, narrowly winged; seeds oblique."	"Acacia aneura"
61	"Phyllodes 8–20 cm long, hairy; pods 5–8 mm wide, thickly biconvex or ± terete, not winged; seeds longitudinal."	62
62	"Shrubs to 3 m high; phyllodes thick, sometimes almost terete; pods ± terete."	"Acacia ramulosa"
62	"Shrubs or small trees 3–6 m high; phyllodes ± flat, never terete; pods thickly biconvex but not terete."	"Acacia brachystachya"
63	"Branchlets grey; young foliage and peduncles often hairy; pods with margins thickened."	"Acacia petraea"
63	"Branchlets reddish brown; young foliage and peduncles glabrous or sparsely hairy; pods with margins not thickened."	64
64	"Phyllodes ± straight and thick, ± stiff."	65
64	"Phyllodes mostly curved, sometimes ± straight, ± thin, flexible; widespread, from the coast to inland districts."	67
65	"Phyllode margins granular-resinous (at least when young, lens needed), irregularly indented, not smooth, apex obtuse, without a mucro; flower heads pale yellow to cream-coloured, 4–5 cm long; widespread on the coast and ranges, west to the Braidwood areas and Rylstone."	"Acacia obtusifolia"
65	"Phyllode margins not resinous, smooth, apex acute with a mucro; flower heads bright yellow, 1–2 cm long; on the coast south from the Nowra district and on the ranges south of the Wolgan R."	66
66	"Phyllodes 2–6 mm wide; heads very sparsely flowered, usually with 10–20 flowers; flowers 4-merous; south of the Tuross R. (SC, ST)."	"Acacia mucronata"
66	"Phyllodes 6–15 mm wide; heads densely flowered, with >50 flowers; flowers 5-merous; on the coast south from the Nowra district and on the ranges south of the Wolgan R."	"Acacia subtilinervis"
67	"Phyllodes usually <12 cm long (range 5–15), mostly with appressed white hairs."	"Acacia floribunda"
67	"Phyllodes mostly >12 cm long (range 6–30), or if less then glabrous."	68
68	"Inland species, west from the Wollemi N.P.; flower heads bright yellow, usually 1.5–3 cm long; flowers 5-merous; secondary veins not anastomosing."	69
68	"Coastal species; flower heads pale yellow to ± white, rarely bright yellow, mostly 3–7 cm long, if 2–3 cm long then flowers pale yellow to ± white; flowers mostly 4-merous; secondary veins anastomosing."	70
69	"Apex of the phyllodes elongate and usually curved or recurved; pod with rough surfaces; phyllodes 2–8 mm wide, bright-green."	"Acacia doratoxylon"
69	"Apex of the phyllodes mostly straight or slightly curved, not recurved; pods with smooth surfaces; phyllodes 1.5–4 mm wide, bluish grey-green."	"Acacia caroleae"
70	"Phyllodes with 4–6 widely spaced longitudinal veins, or secondary veins ± reticulate; widespread on the coast, north from Batemans Bay area."	"Acacia longissima"
70	"Phyllodes with >6 ± closely spaced longitudinal veins; restricted distribution on the north coast, north of Lismore and in the Laurieton district (NC)."	71
71	"Secondary veins sparsely anastomosing; grows in wet sclerophyll forest and rainforest, north from the Lismore district."	"Acacia orites"
71	"Secondary veins densely anastomosing; grows in dry sclerophyll forest, restricted to Middle Brother and North Brother Mtns near Laurieton."	"Acacia courtii"
72	"Lower veins of phyllodes joining with the lower margin or together some distance from the base."	73
72	"Lower veins of phyllodes not joining with the lower margin or with each other above the base."	78
73	"Phyllodes, branchlets and peduncles finely silky with fawn to golden hairs when young, becoming silvery; recorded from near Enngonia (NWP)."	"Acacia cowleana"
73	"Phyllodes branchlets and peduncles glabrous, or if ± hairy then hairs not fawn to golden."	74
74	"Pods 8–20 mm wide, ± woody and transversely veined; seeds ± transverse; phyllodes with lower veins joining with the lower margin some distance from the base, minor longitudinal veins not anastomosing."	75
74	"Pods 2–5 mm wide, neither woody nor prominently transversely veined; seeds longitudinal; phyllodes with lower veins joining with each other, but not with the lower margin, minor longitudinal veins anastomosing."	76
75	"Flower heads bright yellow; ovary densely hairy at least on upper half; phyllodes glaucous to sub-glaucous; recorded in the Grafton area."	"Acacia aulacocarpa"
75	"Flower heads pale yellow to lemon yellow; ovary glabrous; phyllodes pale grey-green to dark grey-green; pods 10–20 mm wide; widespread in coastal areas, north from the Bellinger Valley."	"Acacia disparrima"
76	"Flower heads bright yellow; flowers dense on rachis (check in bud stage)."	"Acacia crassa"
76	"Flower heads pale yellow to yellow; flowers scattered on rachis (check in bud)."	77
77	"Pulvinus mostly 5–9 mm long; branchlets not reddish, often scurfy."	"Acacia concurrens"
77	"Pulvinus mostly 3–4 mm long; branchlets ± reddish, not scurfy."	"Acacia leiocalyx"
78	"Branchlets strongly angled or flattened, 5–10 mm wide; confined to the Tenterfield district."	"Acacia pycnostachya"
78	"Branchlets terete or slightly to moderately flattened or angled, <5 mm wide; widespread, not confined to the Tenterfield district."	79
79	"Phyllodes with minor longitudinal veins anastomosing."	80
79	"Phyllodes with minor longitudinal veins not clearly anastomosing."	86
80	"Phyllode margins granular-resinous (at least when young, lens needed) irregularly indented, not smooth, apex obtuse, without a mucro; flower heads pale yellow to cream-coloured."	"Acacia obtusifolia"
80	"Phyllode margins ± smooth, apex mostly acute or if obtuse then with a mucro; flower heads bright yellow to ± white."	81
81	"Phyllodes <6 times as long as broad; pods ± curled or twisted; prostrate or decumbent shrub 0.5–3 m high, grows in heath and sclerophyll forest on coastal headlands, sand dunes and adjacent alluvial flats (NC, CC, SC)."	"Acacia longifolia"
81	"Phyllodes >6 times as long as broad; pods straight, curved or twisted; erect or spreading tree or shrub 1–16 m high in sclerophyll communities and the margins of rainforest, coast and ranges (NC, CC, SC, NT, CT, ST, NWS, CWS, NWP)."	82
82	"Phyllodes 2–10 mm wide."	"Acacia floribunda"
82	"Phyllodes mostly 10–30 mm wide."	83
83	"Peduncles 4–8 mm long; flower heads bright yellow; inland species, north and west from Denman and Wollar (NWS, CWS, NWP)."	"Acacia crassa"
83	"Peduncles 0–4 mm long; flower heads bright yellow to ± white; widespread on the coast and ranges (NC, CC, SC, NT, CT, ST, CWS)."	84
84	"Pods ± curled and twisted; flower heads 4–6 cm long; peduncles and rachis with a golden pubescence."	"Acacia maidenii"
84	"Pods ± straight; flower heads 1.5–4.5 cm long; peduncles and rachis glabrous, or if pubescent not golden pubescent."	85
85	"Pods not moniliform; flowers June-Oct.; on the coast and ranges, but not at higher altitudes (NC, CC, SC, NT, CT, ST)."	"Acacia longifolia"
85	"Pods moniliform; flowers Oct.-Mar.; at higher altitudes in the Australian Alps (ST)."	"Acacia dallachiana"
86	"Pods 2–4 cm long and 7–15 mm wide."	"Acacia aneura"
86	"Pods usually 4–15 cm long and 2–6 mm wide."	87
87	"Branchlets and young phyllodes and pods distinctly hairy, hairs simple, appressed or spreading."	88
87	"Branchlets, young phyllodes and pods either ± glabrous or if not glabrous then hairs reddish glandular or scurfy with minute whitish or brownish scales."	91
88	"Mature phyllodes <5 times as long as broad; peduncles 0–2 mm long; pods hairy; Emmaville to Torrington district and Kingstown area (NT, NWS)."	"Acacia pubifolia"
88	"Mature phyllodes mostly >5 times as long as broad; peduncles 2–7 mm long; pods glabrous or hairy; chiefly on the coast and ranges south from the Hunter Valley and possibly in the Grafton district."	89
89	"Mature phyllodes finely appressed-hairy; hairs on peduncles appressed; flower heads pale to bright yellow; on the coast and ranges, from the Hunter Valley south to Tathra (NC, CC, SC, CT, ST, CWS)."	"Acacia binervia"
89	"Mature phyllodes glabrous to sparsely hairy; flower heads bright yellow; restricted to the Bulga to Broke area in the Hunter Valley and possibly near Grafton (NC)."	90
90	"Phyllodes mostly 10–15 cm long, green; phyllodes on young growth ± obovate, ± densely hairy; recorded for the Grafton district (NC)."	"Acacia julifera"
90	"Phyllodes usually 3.5–10 cm long, grey-green; phyllodes on young growth ± elliptic, glabrous or almost so; restricted to the Bulga and Broke area (NC)."	"Acacia bulgaensis"
91	"Phyllodes ± thick and straight or occasionally curved; veins and margins of young phyllodes ± yellowish; flower heads 1–3 cm long."	"Acacia subtilinervis"
91	"Without the above combination of characters."	92
92	"Peduncles 4–10 mm long, mostly on an axillary axis 1–2 mm long; flowers well-separated on rachis at flowering stage."	"Acacia sparsiflora"
92	"Peduncles usually 0–5 mm long, on an axillary axis to 25 mm long; flower heads borne directly in the phyllode axils; flowers crowded on rachis at flowering stage."	93
93	"Flower heads sessile, pale yellow."	"Acacia williamsiana"
93	"Flower heads with peduncles 1–6 mm long, bright yellow or if pale yellow to cream-coloured then on an axillary axis to 25 mm long."	94
94	"Pods ± glabrous, sometimes pruinose but not scurfy."	95
94	"Pods usually with simple or glandular hairs, or scurfy."	96
95	"Young phyllodes pubescent; flower heads pale yellow to cream-coloured; chiefly north from the Manning R., also from Coxs R. And near Tallowa Dam (NC, CC, NT, CT)."	"Acacia blakei"
95	"Young phyllodes glabrous and ± resinous; flower heads bright yellow; Rylstone district to Dharug N.P. (CC, CT)."	"Acacia matthewii"
96	"Pods ± scurfy, hairs absent or margins sparsely ciliate; near Tathra and Wadbilliga Creek (SC)."	"Acacia georgensis"
96	"Pods with hairs, simple and/or reddish brown glandular; widespread, chiefly north and west from the upper Hunter Valley, also near Glen Davis (NT, CT, NWS, CWS, NWP)."	97
97	"Phyllodes falcate, mostly 6–23 cm long and 10–35 mm wide; flower heads 3–6 cm long; pods usually 5–15 cm long."	"Acacia cheelii"
97	"Phyllodes ± straight, usually 4–10 cm long and 5–10 mm wide; flower heads 1.5–3 cm long, pods 3–7.5 cm long."	"Acacia burrowii"
98	"Phyllodes with 2 or more ± equally prominent longitudinal veins."	99
98	"Phyllodes with only 1 prominent longitudinal vein (other longitudinal veins, if present, are less prominent), or all of the veins obscure."	149
99	"Phyllodes with distinct lateral or reticulate veins."	100
99	"Phyllodes without lateral or reticulate veins apparent."	123
100	"Branchlets flattened, ± zigzagged; flower heads 1–10, on axillary peduncles 8–12 mm long, or rarely on an axillary axis 1–10 mm long."	"Acacia complanata"
100	"Branchlets not flattened, ± straight; flower heads in axils of phyllodes or in axillary racemes or panicles."	101
101	"Flower heads in racemes or panicles, axillary axis >5 mm long."	102
101	"Flower heads 1–8 on axillary peduncles or on axillary axis usually <5 mm long."	108
102	"Phyllodes >20 mm wide and with 2 or 3 prominent yellowish longitudinal veins and ± undulate margins; pods 9–16 mm wide."	103
102	"Phyllodes usually <20 mm wide or if >20 mm wide then without 2 or 3 yellowish longitudinal veins and margins not undulate; pods 2–8 mm wide."	104
103	"Phyllodes mostly 3-veined, secondary veins forming a fine reticulation; flowers 4-merous; north from Mullumbimby (NC)."	"Acacia bakeri"
103	"Phyllodes mostly 2-veined, secondary veins coarsely anastomosing; flowers 5-merous; north from Narooma (NC, CC, SC, NT, CT)."	"Acacia binervata"
104	"Phyllodes mostly >7 mm wide (range 4–30); pods 4–8 mm wide, curved to twisted; heads with usually 20–50 flowers; axis of racemes mostly >2 cm long."	105
104	"Phyllodes usually <7 mm wide (range 3–8); pods 2–3 mm wide, ± straight; heads with 4–20 flowers; axis of racemes usually <2 cm long."	107
105	"Phyllodes with 2 longitudinal veins, second vein less prominent and towards the upper margin; phyllodes with 1 or 2 glands, the lowermost usually 1–3 cm above base; peduncles glabrous."	"Acacia difformis"
105	"Phyllodes with 3–7 ± equally prominent longitudinal veins; phyllodes with 1 small gland near base; peduncles hairy."	106
106	"Branchlets usually ± terete, glabrous; phyllodes mostly acute; pods 4–7 mm wide; funicle whitish, folded below the seed; flowers chiefly Jan. to April."	"Acacia implexa"
106	"Branchlets angled, at first pubescent, becoming glabrous; phyllodes mostly obtuse; pods 5–8 mm wide; funicle orange to reddish, folded and ± completely surrounding seed; flowers mostly July to Dec."	"Acacia melanoxylon"
107	"Phyllodes ± linear, with c. 10 longitudinal veins; heads with 4–8 flowers, bright yellow; chiefly on the ranges and in the Mudgee district (NT, CT, ST, NWS, CWS)."	"Acacia dawsonii"
107	"Phyllodes usually oblanceolate, with 3–7 longitudinal veins; heads with 12–20 flowers, pale yellow to yellow; mainly in West Wyalong to Condobolin and Forbes area (CWS, SWS, SWP)."	"Acacia trineura"
108	"Phyllodes regularly 0.5–4 cm long."	109
108	"Most phyllodes >4 cm long."	113
109	"Phyllodes ± triangular, 1–2 times as long as broad, 4–13 mm wide; south from the A.C.T. (ST, SWS)."	"Acacia pravissima"
109	"Phyllodes ± elliptic to ± narrow-oblanceolate, usually >4 times as long as broad, 1–7 mm wide; widespread species."	110
110	"Phyllodes ± oblanceolate, 1–4 cm long; branchlets and phyllodes resinous; pods 2–4 mm wide."	111
110	"Phyllodes narrow-elliptic to ± elliptic, mostly 2–7 cm long; branchlets and phyllodes not resinous; pods 4–10 mm wide."	112
111	"Flower heads on simple peduncles, peduncles 3–10 mm long, glabrous or hairy, but not woolly; phyllodes usually with 2 prominent longitudinal veins and with a marginal gland at apex; pods 3–4 mm wide, greyish woolly."	"Acacia montana"
111	"Flower heads usually on an axillary axis 1–8 mm long, peduncles 2–5 mm long, woolly; phyllodes with at least 3–5 prominent longitudinal veins, without an apical gland; pods 2–3 mm wide, ± hairy, but not woolly."	"Acacia ixiophylla"
112	"Branchlets hairy; pods 4–7 mm wide, white-hairy."	"Acacia lanigera"
112	"Branchlets glabrous or sometimes scurfy from minute whitish scales; pods 6–10 mm wide, glabrous."	"Acacia excelsa"
113	"Phyllodes >15 times as long as broad."	114
113	"Phyllodes <15 times as long as broad."	117
114	"Branchlets resinous; pods 2–3 mm wide."	115
114	"Branchlets not resinous; pods 3–6 mm wide."	116
115	"Phyllodes dotted with resin glands, with 3 main longitudinal veins; flower heads pale lemon yellow; south from Nowra district (CC, SC, ST)."	"Acacia cognata"
115	"Phyllodes not dotted with resin glands, with 5–7 longitudinal veins; flower heads light to bright yellow; chiefly on the ranges north from near Uralla (NC, NT, NWS)."	"Acacia viscidula"
116	"Phyllodes ± narrow-oblanceolate, with mostly 3 prominent longitudinal veins; erect or spreading shrub 0.5–4 m high, bark not tessellated; widespread species, south from Woodburn, west to Wagga and Quirindi districts (NC, CC, SC, CT, ST, NWS, CWS)."	"Acacia elongata"
116	"Phyllodes linear to very narrow-elliptic, midvein prominent and 2–10 less prominent longitudinal veins; tall shrub or small tree with tessellated bark; northern escarpment ranges, from the Washpool N.P. to Werrikimbe N.P. (NC, NT)."	"Acacia tessellata"
117	"Phyllodes oblanceolate, ± straight."	118
117	"Phyllodes narrow-elliptic to elliptic or ± oblong, ± curved or sometimes straight."	119
118	"Phyllodes mostly 8–14 cm long; heads with 30–40 flowers, ± white to cream-coloured; pods 6–10 mm wide; north from near Red Rock and Gibraltar Ra. (NC, NT)."	"Acacia baeuerlenii"
118	"Phyllodes 3.5–8 cm long; heads with 12–20 flowers, pale yellow to yellow; pods 2–3 mm wide; mainly in West Wyalong to Condobolin and Forbes area (CWS, SWS, SWP)."	"Acacia trineura"
119	"Pods densely hairy; branchlets densely hairy."	120
119	"Pods glabrous; branchlets glabrous or sparsely hairy."	121
120	"Pods curved to coiled; sepals fused for more than half their length; 1–4 heads in axils; south from the Coonabarabran area."	"Acacia lanigera"
120	"Pods ± straight; sepals free or fused to about half their length; 2–8 heads in axils; north from the Tamworth district."	"Acacia venulosa"
121	"Phyllodes without resin glands; pods 6–10 mm wide."	"Acacia excelsa"
121	"Phyllodes dotted with resin glands; pods 4–6 mm wide."	122
122	"Phyllodes with 2–5 main longitudinal veins; heads with 16–25 flowers, pale yellow; south from the Bodalla area (SC)."	"Acacia subporosa"
122	"Phyllodes with only 2 longitudinal veins; heads with 35–60 flowers, bright yellow; widespread, especially on the ranges and Slopes, but not in the SC (CC, CT, ST, NWS, SWS, SWP)."	"Acacia verniciflua"
123	"Phyllodes regularly <3 cm long."	124
123	"Phyllodes mostly >3 cm long."	127
124	"Phyllodes 4–13 mm wide, ± triangular, 1–2 times as long as broad; pods 5–6 mm wide."	"Acacia pravissima"
124	"Phyllodes 1–5 mm wide, narrow-oblanceolate, >5 times as long as broad; pods 2–4 mm wide."	125
125	"Branchlets distinctly resinous and often angled; phyllodes with marginal gland near the puvinus and sometimes at base of mucro; pods ± straight."	"Acacia johnsonii"
125	"Branchlets not resinous, ± terete; phyllodes with 1 marginal gland near the pulvinus; pods strongly curved, twisted or coiled."	126
126	"Phyllodes usually resinous; heads with c. 20 flowers; more widespread, south from Cobar (NWP, SWP, SFWP)."	"Acacia wilhelmiana"
126	"Phyllodes not resinous; heads with 10–20 flowers; west of Balranald (SFWP)."	"Acacia sclerophylla"
127	"Phyllodes >14 cm long."	128
127	"Phyllodes <14 cm long."	131
128	"Phyllodes curved, broad and tapered to both ends, 7–20 mm wide."	"Acacia harpophylla"
128	"Phyllodes ± straight, narrow and ± parallel-sided, 1–6 mm wide."	129
129	"Phyllodes usually ± terete, 1–2.5 mm wide, densely appressed-pubescent; veins fine and crowded; racemes with axis <1 cm long."	"Acacia coriacea"
129	"Phyllodes always flat, sparsely appressed pubescent then ± glabrous; main veins ± distinct and usually separated; racemes with axis 1–3 cm long."	130
130	"Phyllodes mostly >15 cm long (range 14–40); flower heads cream-coloured to yellow; pods 8–13 mm wide, moniliform; widespread in western districts, west from Inverell."	"Acacia stenophylla"
130	"Phyllodes usually <15 cm long (range 4–16.5); flower heads yellow to bright yellow; pods 3–5 mm wide, not moniliform; from coastal districts west to Wagga and Quirindi districts."	"Acacia elongata"
131	"Phyllodes ± terete, 1–1.5 mm wide."	132
131	"Phyllodes flat, 1.5–30 mm wide."	134
132	"Gland on phyllode 5–10 mm above base; phyllode apex ± hooked; heads usually in racemes with axis 5–20 mm long."	"Acacia calamifolia"
132	"Glands on phyllodes <4 mm from base; phyllode apex not prominently hooked; heads on axillary peduncles or on axillary axis 1–4 mm long."	133
133	"Phyllodes 1–1.5 mm wide, with marginal gland adjacent to the pulvinus; peduncles glabrous; pods minutely hairy, 2–4 mm wide, strongly curved, twisted or coiled; widespread in inland district, south and west from Gilgandra (CWS, NWP, SWP, NFWP, SFWP)."	"Acacia rigens"
133	"Phyllodes c. 1 mm wide, with marginal gland at least a few mm from the pulvinus; peduncles hairy; pods ± glabrous, 3.5–5 mm wide, ± straight; in the Blue Mtns from near Woodford to Mt Victoria (CC, CT)."	"Acacia ptychoclada"
134	"Flower heads in racemes with axis 5–25 mm long; heads with 4–8 flowers."	"Acacia dawsonii"
134	"Flower heads usually on simple axillary peduncles or sometimes in racemes or on an axillary axis 1–15 mm long, mostly 1–6 heads per axil (range 1–20); heads with 10–60 flowers."	135
135	"Phyllodes with 10–15 prominent longitudinal veins; heads with 5–16 flowers; peduncles 0–1 mm long; pods 5–10 mm wide, often twisted or coiled; inland regions, west of Griffith and Yetman districts."	"Acacia oswaldii"
135	"Without the above combination of characters and distribution."	136
136	"Branchlets flattened, ± zigzagged; phyllodes mostly 10–30 mm wide."	"Acacia complanata"
136	"Branchlets not flattened, ± straight; phyllodes usually 1.5–20 mm wide."	137
137	"Phyllodes ± oblanceolate, 1–4.5 cm long and 2–4 mm wide; west of Balranald (SFWP)."	"Acacia sclerophylla"
137	"Phyllodes mostly elliptic to narrow-elliptic or linear, 4–20 cm long and 2–25 mm wide; widespread, not confined to the SFWP."	138
138	"Branchlets resinous; phyllodes resinous, usually prominently dotted with ± raised resin glands."	139
138	"Branchlets not resinous; phyllodes not resinous, not dotted with ± raised resinous glands."	142
139	"Phyllodes usually 1.5–3.5 mm wide; pods 2–3 mm wide."	140
139	"Phyllodes mostly 3.5–11 mm wide; pods 4–6 mm wide."	141
140	"Phyllodes prominently dotted with resin glands, usually with 3 main veins; flower heads pale lemon yellow; south from the Nowra district (CC, SC, ST)."	"Acacia cognata"
140	"Phyllodes not prominently dotted with resin glands, with 5–7 longitudinal veins; flower heads light to bright yellow; chiefly on the ranges north from near Uralla (NC, NT, NWS)."	"Acacia viscidula"
141	"Phyllodes with 2–5 main longitudinal veins with minor longitudinal veins between; heads pale yellow with 16–25 flowers; south from the Bodalla area (SC)."	"Acacia subporosa"
141	"Phyllodes with only 2 longitudinal veins visible; heads bright yellow, with 35–60 flowers; widespread, chiefly on the ranges and Slopes, not in the SC."	"Acacia verniciflua"
142	"Phyllodes >12 times as long as broad, usually 2–5 mm wide."	143
142	"Phyllodes mostly <12 times as long as broad, usually 4–20 mm wide."	144
143	"Phyllodes and branchlets silky, ± silvery; pods 5–6 mm wide, moniliform, silvery hairy; from Enngonia south to Willandra Creek (SWP, NFWP)."	"Acacia cana"
143	"Phyllodes and branchlets ± glabrous or with scattered hairs, green; pods 3–5 mm wide, ± glabrous, not moniliform; from coastal districts west to Wagga and Quirindi districts (NC, CC, SC, CT, NWS, CWS)."	"Acacia elongata"
144	"Stipules usually persistent; peduncles hairy; pods 10–18 mm wide, margins winged."	"Acacia pendula"
144	"Stipules caducous; peduncles glabrous or hairy; pods 3–12 mm wide, not winged."	145
145	"Phyllodes 3–6 mm wide, all longitudinal veins usually faint; pods 5–6 mm wide, ± silvery with appressed hairs."	"Acacia cana"
145	"Phyllodes 3–20 mm wide, usually with 2–5 more prominent longitudinal veins; pods 3–12 mm wide, glabrous or hairy but not silvery with appressed hairs."	146
146	"Phyllodes mostly 10–20 cm long, 7–20 mm wide, with 3–5 prominent longitudinal veins; peduncles 10–20 mm long."	"Acacia harpophylla"
146	"Phyllodes usually 4–10 cm long, 3–10 mm wide, with 1–3 ± prominent longitudinal veins; peduncles 3–10 mm long."	147
147	"Phyllodes usually ± curved; heads with 30–50 flowers; seeds ± transverse."	"Acacia melvillei"
147	"Phyllodes mostly ± straight; heads with 15–30 flowers; seeds longitudinal."	148
148	"Flower heads 1–3 per axil or on an axullary axis 1–2 mm long, bright yellow; peduncles 3–5 mm long; pods 3–5 mm wide."	"Acacia homalophylla"
148	"Flower heads mostly 4–20 on axillary axis 2–9 mm long, pale yellow or whitish; peduncles usually 5–10 mm long; pods 7–10 mm wide."	"Acacia cambagei"
149	"Phyllodes with distinct lateral or reticulate veins (at least in dried material)."	150
149	"Phyllodes without distinct lateral or reticulate veins."	235
150	"Phyllodes usually <5 cm long."	151
150	"Phyllodes mostly >5 cm long."	186
151	"Stipules spinescent, 5–15 mm long, persistent."	152
151	"Stipules not spinescent, if present 1–2 mm long and often caducous."	153
152	"Phyllodes 2–8 cm long, >8 times as long as broad; flower heads pale yellow to ± white."	"Acacia victoriae"
152	"Phyllodes 0.8–3 cm long, <6 times as long as broad; flower heads ± bright yellow."	"Acacia paradoxa"
153	"Branchlets ending in pungent spines; phyllodes usually 0.2–0.6 cm long and 1–3 mm wide; confined to the SFWP."	"Acacia acanthoclada"
153	"Branchlets not ending in pungent spines; phyllodes 0.4–5 cm long and 4–26 mm wide, or if 2–3 mm wide then 2.5–5 cm long; widespread, but not in SFWP."	154
154	"Phyllodes <2 times as long as broad; phyllodes ± circular, broad-elliptic to obovate or ovate."	155
154	"Phyllodes >2 times as long as broad."	165
155	"Pods >15 mm wide and glabrous; seeds transverse; phyllodes often twisted at angles of 30–90° to stem."	156
155	"Pods <10 mm wide or if >10 mm wide then pods hairy; seeds longitudinal; phyllodes not usually twisted on stem."	162
156	"Flower heads yellow to deep yellow (golden); open shrubs usually >1.5 m high, or if shorter then branchlets pruinose or phyllodes usually <16 mm long or if longer than base truncate to cordate; petals >1.8 mm long."	157
156	"Flower heads cream-coloured to yellow; shrubs <1.5 m high, or if more then phyllodes >16 mm long; petals <1.8 mm long."	158
157	"Branchlets pruinose and downwards arching; phyllodes asymmetrically cordate or truncate at base; heads mostly >35-flowered."	"Acacia sertiformis"
157	"Branchlets non-pruinose, erect and often curved upwards; phyllodes with acute to obtuse base; heads mostly 20–32-flowered."	"Acacia piligera"
158	"Flower heads in axillary racemes or rarely on axillary peduncles; at least some phyllodes >3 cm long and broad-elliptic to broad-obovate and moderately to densely hairy; lateral veins of phyllodes <45° to the midvein."	"Acacia uncinata"
158	"Flower heads mostly on axillary peduncles, sometimes appearing as short terminal racemes (as subtending floral phyllodes reduced); phyllodes >3 cm long, ovate and sparsely hairy to ± glabrous; lateral veins of phyllodes >45° to the midvein."	159
159	"Phyllodes mostly >1.6 cm long; tall open shrubs, mostly >1.5 m high."	"Acacia undulifolia"
159	"Phyllodes usually <1.6 cm long; low bushy shrubs usually <1.3 m high."	160
160	"Flower heads pale yellow to yellow; branchlets and pulvinus with an indumentum of ± appressed short hairs with longer ± spreading hairs; phyllodes ± glossy green, markedly undulate with the phyllode usually twisted."	"Acacia clandullensis"
160	"Flower heads cream-coloured; branchlets and pulvinus with uniform length spreading hairs, sometimes slightly inclined or reflexed; phyllodes dull grey-green, flat or slightly undulate, sometimes convex but not twisted."	161
161	"Hairs on flower buds yellow to golden; phyllodes densely or moderately hairy; branchlets with hairs spreading to slightly inclined."	"Acacia aureocrinita"
161	"Hairs on flower buds grey or fawn-coloured; phyllodes usually sparsely hairy or ± glabrous; branchlets with hairs mostly slightly reflexed."	"Acacia cremiflora"
162	"Branchlets hairy; phyllodes ± elliptic to obovate, ± symmetric, usually hairy."	163
162	"Branchlets glabrous; phyllodes asymmetrically triangular, ± glabrous."	164
163	"Branchlets distinctly angled; 1–5 flower heads per raceme, axis 0.2–0.5 cm long."	"Acacia brachybotrya"
163	"Branchlets ± terete; 10–20 flower heads per raceme, axis 3–11 cm long."	"Acacia podalyriifolia"
164	"Phyllodes acute, marginal gland near the middle of the phyllode; 25–35 flowers per head."	"Acacia cultriformis"
164	"Phyllodes obtuse, marginal gland closer to the pulvinus; 6–9 flowers per head."	"Acacia pravissima"
165	"Flower heads on axillary peduncles or on an axis <3 mm long."	166
165	"Flower heads usually in axillary racemes."	168
166	"Phyllodes 2.5–5 cm long, 2–5 mm wide; stems and phyllodes resinous; chiefly from the Dubbo, Gilgandra and Mendooran area."	"Acacia ixodes"
166	"Phyllodes 3–12 cm long, usually 5–15 mm wide; stems and phyllodes resinous or not resinous; inland areas west from Cobar and West Wyalong districts."	167
167	"Phyllodes commonly with 3 glands, the lowermost 2–25 mm above the puvlinus and 1 at the base of the mucro; pods 7–11 mm wide, ± woody."	"Acacia ligulata"
167	"Phyllodes with 1 gland near the pulvinus; pods 1.5–3 mm wide, not woody."	"Acacia halliana"
168	"Phyllodes reddish, bipinnate leaves usually still present on mature growth."	"Acacia nana"
168	"Phyllodes green to greyish, bipinnate leaves not present on mature growth."	169
169	"Branchlets sparsely hairy, red-brown; phyllodes with 1 or 2 glands, the lowermost 5–15 mm above base; heads bright yellow, with 15–30 flowers; peduncles with appressed golden hairs."	"Acacia decora"
169	"Without the above combination of characters."	170
170	"Phyllodes usually with 2–4 glands scattered along margin."	171
170	"Phyllodes with only 1 gland or glands absent."	173
171	"Phyllodes usually acute; pods usually 4–6 mm wide; widespread, chiefly on the coast and ranges, west to near Wellington."	"Acacia amoena"
171	"Phyllodes obtuse; pods mostly 6–11 mm wide; confined to the escarpment ranges SE of Cooma and west from the Cobar district."	172
172	"Phyllodes ± narrow-oblanceolate, mostly 5–10 mm wide, commonly with 3 glands, the lowermost 2–25 mm above the puvlinus and 1 at the base of the mucro; midvein ± central; pods 7–11 mm wide, ± woody; inland areas west from Cobar district."	"Acacia ligulata"
172	"Phyllodes ± obovate, usually 8–15 mm wide, with 2 or 3 glands ± evenly along margin; midvein usually acentral; pods 5–8 mm wide, not woody; chiefly confined to the escarpment ranges SE of Cooma (SC, ST)."	"Acacia kydrensis"
173	"Phyllodes with 1 gland about 5–20 mm above base and gland prominently exserted; trees 4–18 m high."	"Acacia prominens"
173	"Glands if present not prominently exserted; mainly shrubs, 1–8 m high."	174
174	"Phyllodes >10 times as long as wide, usually ± linear to narrow-oblanceolate, hairy mainly on the margins; marginal gland towards the base of the phyllode."	"Acacia fimbriata"
174	"Phyllodes usually <10 times as long as wide, elliptic to oblong, or oblanceolate to obovate, glabrous or ± hairy all over; glands absent or present."	175
175	"Branchlets and phyllodes ± hairy (at least when young)."	176
175	"Branchlets and phyllodes glabrous."	179
176	"Phyllodes usually 1–2.5 cm long and 3–6 mm wide; south from the Newnes area (CT, ST)."	"Acacia kybeanensis"
176	"Phyllodes 1–9 cm long and mostly 6–20 mm wide; northern species (NC, NT, NWS, NWP)."	177
177	"Phyllodes <4 times as long as broad, 1.5–4.5 cm long; pods 11–21 mm wide; flower heads pale yellow; peduncles 8–20 mm long."	"Acacia uncinata"
177	"Phyllodes >4 times long as broad, usually 4–10 cm long; pods 6–11 mm wide; flower heads mid to bright yellow; peduncles 2–6 mm long."	178
178	"Phyllodes with pulvinus <2 mm long; racemes with 3–10 flower heads; flower heads mid yellow; chiefly from Barrington Tops to the Gibraltar Ra. (NC, NT)."	"Acacia barringtonensis"
178	"Phyllodes with pulvinus 2–5 mm long; racemes with 10–20 heads; flower heads bright yellow; confined to the Yetman district (NWP)."	"Acacia jucunda"
179	"Flower heads pale yellow; pods 3–5 mm wide; heads with 2–8 flowers."	"Acacia myrtifolia"
179	"Flower heads bright yellow; pods 5–15 mm wide; heads with 3–40 flowers."	180
180	"Racemes mostly longer than the phyllodes; phyllodes generally <5 times as long as broad; midvein usually acentral."	181
180	"Racemes mostly shorter than or about as long as the phyllodes; phyllodes generally >5 times as long as broad."	183
181	"Heads with 3–5 flowers; phyllodes narrow-elliptic to elliptic or oblanceolate, apex mostly long-acute."	"Acacia lunata"
181	"Heads with 5–29 flowers; phyllodes ± elliptic to oblanceolate or obovate, apex obtuse or short-acute; midvein usually ± central."	182
182	"Branchlets, raceme axes and calyces usually not pruinose; phyllodes ± narrow-elliptic, ± acute to obtuse, 2–11 mm wide; heads 7–29-flowered."	"Acacia buxifolia"
182	"Branchlets (at least when young), raceme axes and calyces (especially in bud) usually pruinose; phyllodes obovate to elliptic, obtuse, 6–14 mm wide; heads 5–10-flowered."	"Acacia leucolobia"
183	"Heads with 3–5 flowers; phyllodes 1.5–3.5 cm long; from Bralga Tops and the Hunter Valley to Richmond district (NC, CC, CT)."	"Acacia lunata"
183	"Heads with 5–25 flowers; phyllodes usually 3.5–6 cm long, or rarely 1–3.5 cm long; south of Sydney (SC, CT, ST)."	184
184	"Phyllodes oblanceolate, gland basal and inconspicuous; pods 5–7 mm wide; confined to the Wombeyan Caves area (CT)."	"Acacia chalkeri"
184	"Phyllodes oblong-elliptic to ± narrow-elliptic, gland usually >5 mm above base, and mostly conspicuous; pods 7–14 mm wide; south of the A.C.T."	185
185	"Heads with 5–8 flowers; branchlets brown to black, strongly pruinose; from Bega district to Bendethera (SC, ST)."	"Acacia covenyi"
185	"Heads with 10–20 flowers; branchlets reddish brown, not pruinose; south from Tumut (ST)."	"Acacia kettlewelliae"
186	"Stipules spinescent, 2–15 mm long, usually present at least on young growth, bases often only persistent on older stems; peduncles usually 6–18 mm long; flower heads pale yellow to ± white; phyllodes <8 cm long and <8 mm wide; pods 9–16 mm wide."	"Acacia victoriae"
186	"Without the above combination of characters."	187
187	"Flower heads on simple peduncles (usually 1–4) or at least appearing so with axillary axis <3 mm long."	188
187	"Flower heads in racemes or panicles, usually with >3 heads."	199
188	"Phyllodes >20 times as long as broad."	189
188	"Phyllodes <20 times as long as broad."	191
189	"Phyllodes mostly >16 cm long; peduncles hairy; pods moniliform."	"Acacia stenophylla"
189	"Phyllodes usually <16 cm long; peduncles glabrous or ± mealy with very fine hairs; pods not moniliform."	190
190	"Branchlets ± terete; flower heads usually 3–10 in an axillary raceme; peduncles 4–9 mm long; pods 8–12 mm wide, seeds transverse; inland districts, west from the Pilliga Scrub."	"Acacia murrayana"
190	"Branchlets angled and prominently ribbed; flower heads 1–3 in axils of phyllodes; peduncles 7–21 mm long; pods 4–6 mm wide; seeds longitudinal; escarpment ranges from Washpool N.P. to Werrikimbe N.P."	"Acacia tessellata"
191	"Phyllodes <7.5 times as long as broad."	192
191	"Phyllodes >7.5 times as long as broad."	193
192	"Branchlets and phyllodes resinous; heads 14–18-flowered, pale yellow; pods 3–5 mm wide, ± straight; south from Rylstone district (CT, ?CWS)."	"Acacia leprosa"
192	"Branchlets and phyllodes not resinous; heads with 28–55 flowers, bright yellow; pods 1.5–3 mm wide, irregularly twisted; West Wyalong to Weethalle district and from Balranald to Euston (CWS, SWP, SFWP)."	"Acacia halliana"
193	"Branchlets distinctly angled, flattened or ridged; phyllodes without thickened margins."	194
193	"Branchlets ± terete; phyllodes with ± thickened margins."	198
194	"Branchlets resinous, at least on the ridges; phyllodes without or with only 1 marginal gland adjacent to the pulvinus; pods 2–5 mm wide; common on the coast and ranges, west to the Rylstone area."	195
194	"Branchlets not resinous; phyllodes with 1–5 glands spread along the margin; pods 4–14 wide; widespread in inland districts, west from the upper Hunter Valley."	196
195	"Phyllodes oblanceolate, apex obtuse, closely reticulately penniveined, extending to margins."	"Acacia stricta"
195	"Phyllodes elliptic to lanceolate, ± acute, lateral veins looping and forming ± prominent veins within margins."	"Acacia leprosa"
196	"Plants with long drooping branchlets, branchlets strongly zigzagged; phyllodes pendent, grey-green; pods not constricted between the seeds; flower heads pale yellow to ± white."	"Acacia salicina"
196	"Plants with spreading or short drooping branchlets,branchlets not obviously zigzagged; phyllodes ± erect, green; pods constricted between the seeds; flower heads bright yellow."	197
197	"Phyllodes ± narrow-elliptic, usually 2–5 mm wide and with a marginal gland towards the middle of the phyllode; pods 4–6 mm wide, not woody."	"Acacia rivalis"
197	"Phyllodes ± narrow-oblanceolate, mostly 5–10 mm wide, commonly with 3 glands, the lowermost 2–25 mm above the puvlinus and 1 at the base of the mucro; pods 7–11 mm wide, woody."	"Acacia ligulata"
198	"Phyllodes 6–18 cm long, with 2–5 glands spread along the margin; flower heads bright yellow, 50–70 flowers per head; pods 5–6 mm wide."	"Acacia beckleri"
198	"Phyllodes 2–8 cm long, with 1 marginal gland near the pulvinus; flower heads pale yellow to ± white, 10–30 flowers per head; pods 9–16 mm wide."	"Acacia victoriae"
199	"Phyllodes reddish (especially when dried), bipinnate leaves usually still present on mature plants."	200
199	"Phyllodes not reddish, bipinnate leaves not present on mature plants."	201
200	"Pods strongly curved, 3.5–6 mm wide; funicle not encircling the seed; apex of phyllodes very obtuse but with an abruptly hooked mucro; flower heads 3–4 mm diam., 7–10-flowered; spreading shrubs, mostly <2 m high."	"Acacia nana"
200	"Pods straight, 6–9 mm wide; funicle almost or completely encircling seed; apex of phyllodes gradually acute or acuminate, with a straight or hooked mucro, rarely obtuse-mucronate; flower heads 5–6 mm diam., 9–15-flowered; erect shrubs or trees 2–10 m high."	"Acacia rubida"
201	"Phyllodes ± oblanceolate, apex obtuse (or rarely subacute) and upwardly curved, well-separated on branchlets, glabrous and with 2–5 glands scattered along margin; flower heads bright yellow on a ± zigzagged axis."	"Acacia gladiiformis"
201	"Without the above combination of characters."	202
202	"Phyllodes usually >20 times as long as broad."	203
202	"Phyllodes usually <20 times as long as broad."	206
203	"Phyllodes glabrous."	204
203	"Phyllodes hairy."	205
204	"Pods 4–6 mm wide; seeds longitudinal; phyllodes ± narrow-elliptic, tapered into a shortly curved mucro; 1 small gland at least 15 mm above base; recorded only from the Broken Hill district."	"Acacia rivalis"
204	"Pods 8–13 mm wide; seeds transverse; phyllodes ± narrow-oblanceolate, apex obtuse with a short mucro; usually with 2 small glands, 1 near base and the other at apex; widespread in inland districts, west from the Pilliga Scrub."	"Acacia murrayana"
205	"Phyllodes 4–12 mm wide, hairy with silvery hairs; 1–3 glands spread along the margin; pods 6–10 mm wide; widespread, chiefly on the ranges and Slopes, north from Barradine."	"Acacia neriifolia"
205	"Phyllodes 2–3 mm wide, hairy with scattered pale yellow to whitish hairs, at least on midvein and margins; 1 basal gland present and sometimes a second gland near the middle; pods 5–7 mm wide; restricted to the escarpment ranges and gorges, from Guy Fawkes R. N.P. to Apsley Falls (possibly also in Mann R. N.R.)."	"Acacia ingramii"
206	"Phyllodes usually >12 times as long as broad."	207
206	"Phyllodes usually <12 times as long as broad."	211
207	"Plants with long drooping branchlets, branchlets strongly zigzagged; pods woody; phyllodes glabrous, and with 2–5 small glands along margin."	"Acacia salicina"
207	"Plants with spreading or short drooping branchlets, branchlets not obviously zigzagged; pods not woody; phyllodes with 1 gland, or if >1 then phyllodes and branchlets silvery hairy."	208
208	"Phyllodes and branchlets hairy with silvery hairs; 1–3 glands spread along the margin; widespread, chiefly on the ranges and Slopes, north from Baradine."	"Acacia neriifolia"
208	"Phyllodes and branchlets glabrous; 1 gland, either at base or above base; chiefly on the coast and ranges, and inland areas south from Sydney."	209
209	"Phyllodes 4–10 cm long; on the ranges, chiefly south from Tumut (ST)."	"Acacia kettlewelliae"
209	"Phyllodes usually 10–30 cm long; widespread, especially in coastal districts, but not south of Tumut (NC, CC, SC, ST, SWS)."	210
210	"Flower heads cream-coloured to ± white; pods 7–15 mm wide; phyllodes with a marginal gland above base; young racemes not enclosed by imbricate bracts; restricted to the area from Nowra to Bermagui and inland to the Budawang Ra. (SC, ST)."	"Acacia mabellae"
210	"Flower heads bright yellow; pods 4–6 mm wide; phyllodes with a marginal gland adjacent to the pulvinus; young racemes enclosed by imbricate bracts (2–3 mm long and falling early); widespread, naturalized chiefly in coastal districts (NC, CC, SC, ?SWS)."	"Acacia saligna"
211	"Phyllodes with a mucro, apex acute to ± obtuse."	212
211	"Phyllodes without a mucro, apex usually ± obtuse or rarely acute."	223
212	"Western species; flower heads bright yellow; inland areas, chiefly west from Cobar district, also near Yetman,."	213
212	"Eastern species, chiefly on the coast and ranges, west to Wellington district; flower heads pale yellow to cream-coloured or yellow to bright yellow."	216
213	"Phyllodes and branchlets pubescent with short erect hairs; gland small, c. 2 mm above pulvinus; pods 9–11 mm wide, not moniliform; confined to the Yetman district (NWP)."	"Acacia jucunda"
213	"Phyllodes and branchlets glabrous or rarely branchlets sparsely hairy; glands 2–5, scattered along margin; pods 5–8 mm wide, if 8–10 mm wide then ± moniliform; west from Cobar district (NWP, SWP, NFWP, SFWP)."	214
214	"Phyllodes with a long-acute apex."	"Acacia jennerae"
214	"Phyllodes with ± obtuse apex."	215
215	"Phyllodes usually with 3 glands, the lowermost 2–25 mm above the puvlinus and 1 at the base of the mucro; heads with 15–24 flowers; pods 7–11 m wide, ± moniliform."	"Acacia ligulata"
215	"Phyllodes usually with 2–5 glands along margin; heads with 50–70 flowers; pods 5–7 mm wide, not moniliform."	"Acacia beckleri"
216	"Phyllodes with 2–4 glands scattered along margin and margin often indented or angled at least at one of the glands."	217
216	"Phyllodes with only 1 gland or glands absent."	218
217	"Phyllodes usually acute; pods 4–6 mm wide; heads 6–12-flowered; widespread, chiefly on the ranges (CC, NT, CT, ST, CWS)."	"Acacia amoena"
217	"Phyllodes obtuse; pods 5–8 mm wide; heads 12–25-flowered; chiefly confined to the escarpment ranges SE of Cooma (SC, ST)."	"Acacia kydrensis"
218	"Phyllodes with 1 gland about 1–2 cm above base and gland prominently exserted."	"Acacia prominens"
218	"Glands if present not prominently exserted."	219
219	"Heads with 2–8 flowers."	"Acacia myrtifolia"
219	"Heads 12–45 flowers."	220
220	"Flower heads bright to mid yellow; pods usually 5–10 mm wide."	221
220	"Flower heads pale yellow to ± white; pods usually 10–23 mm wide."	222
221	"Phyllodes mostly oblanceolate, glabrous; branchlets glabrous; gland basal and inconspicuous; pods 5–7 mm wide; confined to the Wombeyan Caves area (CT)."	"Acacia chalkeri"
221	"Phyllodes ± oblong-elliptic, mostly finely hairy, usually glabrescent with age; branchlets finely hairy; gland 6–15 mm above base; pods 8–12 mm wide; chiefly from Barrington Tops to the Boonoo Boonoo area. (NC, NT)."	"Acacia barringtonensis"
222	"Phyllode base symmetric, midvein central, margin not prominently indented at gland, lateral veins usually obscure."	"Acacia saliciformis"
222	"Phyllode base asymmetric, midvein acentral, margin prominently indented at gland, gland 5–30 mm above pulvinus, obviously connected to midvein by lateral vein."	"Acacia penninervis"
223	"Phyllodes with a strong ± central longitudinal vein and a weaker longitudinal vein near the upper margin."	"Acacia difformis"
223	"Phyllodes with only 1 longitudinal vein visible."	224
224	"Phyllodes ± curved, base usually asymmetric, midvein towards upper margin, margin usually indented or distinctly angled at gland above pulvinus, gland usually prominent and often with a vein leading to the midvein."	225
224	"Phyllodes ± straight, base ± symmetrc, midvein ± central, margins not indented or angled at glands (1 or 2 along margins), evenly tapering to base."	232
225	"Phyllodes regularly <4 times as long as broad; pods usually 5–7 mm wide; heads with 25–40 flowers, yellow to bright yellow; restricted to area between Bermagui and Tathra (SC)."	"Acacia pedina"
225	"Without the above combination of characters and distribution."	226
226	"Pods 4–8 mm wide; seeds longitudinal."	227
226	"Pods usually 8–25 mm wide; seeds transverse, oblique or longitudinal."	228
227	"Heads with usually 40–80 flowers, bright yellow; peduncles and inflorescence axes glabrous."	"Acacia pycnantha"
227	"Heads with 12–20 flowers, pale yellow to cream-coloured; peduncles and inflorescence axes hairy with fawn-coloured hairs."	"Acacia falcata"
228	"Peduncles ± hairy with short appressed yellowish hairs."	229
228	"Peduncles usually glabrous, rarely hairy and then hairs not yellowish."	230
229	"Flower heads appearing July-Oct.; funicle shortish, folded under seed, not more than half encircling it; phyllodes mostly green, oblong-oblanceolate to oblong-obovate or obovate, mostly curved, 8–22 cm long, 12–40 mm wide, branchlets brown, sometimes ± pruinose; widespread species (NC, CC, SC, NT, CT, ST, NWS, CWS, SWP)."	"Acacia falciformis"
229	"Flower heads appearing Jan.-Mar.; funicle elongated, completely or almost completely encircling seed; phyllodes glaucous or subglaucous, obovate, oblanceolate or narrow-elliptic, smoothly curved (not oblong), 5–14 cm long, 8–30 mm wide; branchlets glaucous to pruiunose; confined to the granite ranges of NE N.S.W. (NC, NT)."	"Acacia nova-anglica j.b.williams ms. (williams 97011)"
230	"Flower heads pale yellow to ± white; widespread species, from coastal districts to inland districts (NC, CC, NT, CT, ST, NWS, CWS, NWP)."	"Acacia penninervis"
230	"Flower heads bright yellow to yellow; chiefly on the ranges, south from the Goulburn R. valley (CT, ST, CWS)."	231
231	"Pulvinus c. 2 mm long; pods 7–12 mm wide; inflorecence axis 1.5–5 cm long, ± straight; heads with 15–25 flowers."	"Acacia obtusata"
231	"Pulvinus 4–7 mm long; pods usually 12–25 mm wide; inflorescence axis 1–10 cm long, zigzagged; heads with 20–35 flowers."	"Acacia obliquinervia"
232	"Pods 3–7 cm long and 8–14 mm wide; seeds transverse; heads with 45–60 flowers, bright yellow; restricted to the Broken Hill district."	"Acacia notabilis"
232	"Without the above combination of characters and distribution."	233
233	"Phyllodes oblanceolate, tapering to base from near the apex, 3–12 mm wide, secondary veins longitudinally anastomosing, with 1 or 2 glands along margin; flower heads bright yellow; pods 4–6 mm wide."	"Acacia hakeoides"
233	"Phyllodes narrow-elliptic to oblanceolate, tapering to apex and base from about a third to halfway below apex, 7–40 mm wide, finely penniveined, with 1 gland above base; flower heads pale yellow to white; pods 5–25 mm wide."	234
234	"Pods 12–25 mm wide; heads with 15–30 flowers; peduncles and inflorescence axes mostly glabrous, rarely appressed-hairy."	"Acacia penninervis"
234	"Pods 5–8 mm wide; heads with 12–20 flowers; peduncles and inflorescence axes hairy with fawn-coloured hairs."	"Acacia falcata"
235	"Flower heads in axillary or terminal racemes or panicles."	236
235	"Flower heads on simple axillary peduncles or at least appearing so (axillary axis <1 mm long)."	313
236	"Phyllodes usually <8 times as long as broad."	237
236	"Phyllodes mostly >8 times as long as broad."	259
237	"Phyllodes reddish (especially when dried); bipinnate leaves usually still present on mature plants; heads with 7–15 flowers, bright yellow to pale yellow."	238
237	"Phyllodes not reddish, or if reddish then heads 2–8-flowered and pale yellow to ± white; bipinnate leaves not present on mature plants."	239
238	"Pods strongly curved, 3.5–6 mm wide; funicle not encircling the seed; apex of phyllodes very obtuse but with an abruptly hooked mucro; flower heads 3–4 mm diam., 7–10-flowered; spreading shrubs, mostly <2 m high."	"Acacia nana"
238	"Pods straight, 6–9 mm wide; funicle almost or completely encircling seed; apex of phyllodes gradually acute or acuminate, with a straight or hooked mucro, rarely obtuse-mucronate; flower heads 5–6 mm diam., 9–15-flowered; erect shrubs or trees 2–10 m high."	"Acacia rubida"
239	"Mature phyllodes hairy, at least on the margins or midvein; stems sparsely to densely hairy."	240
239	"Mature phyllodes glabrous or almost so; stems glabrous or sparsely hairy."	245
240	"Phyllodes <3 times as long as broad."	241
240	"Phyllodes >3 times as long as broad."	243
241	"Stipules caducous; pods glabrous, 3–11 cm long, seeds longitudinal; CT and CWS species."	"Acacia vestita"
241	"Stipules persistent; pods hairy, 1.5–5 cm long, seeds transverse; ST species."	242
242	"Phyllodes ± asymmetrically elliptic to ovate, less than twice as long as broad, margins ± undulate."	"Acacia costiniana"
242	"Phyllodes oblong to oblanceolate, more than twice as long as broad, margins not undulate."	"Acacia lucasii"
243	"Phyllodes ± oblanceolate, 5–20 mm wide; flower heads ± ovoid; pods 5–8 mm wide, densely hairy; from Newnes district to near Robertson (CT)."	"Acacia dorothea"
243	"Phyllodes ± narrow-elliptic to elliptic; flower heads globose; pods 7–18 mm wide, glabrous or very finely hairy; widespread in inland districts, west from the Kowmung R. and the upper Hunter Valley."	244
244	"Racemes with 8–26 heads, axis 1.5–5 cm long; pods 7–10 mm wide, glabrous; from the Kowmung R. and adjacent Coxs R. area (CC, CT)."	"Acacia clunies-rossiae"
244	"Racemes with 2–4 heads, axis <1.5 cm long; pods 10–18 mm wide, margins winged; widespread in inland districts, west from the upper Hunter Valley (NC, NWS, CWS, NWP, SWP, NFWP)."	"Acacia pendula"
245	"Branchlets red-brown, usually sparsely hairy; phyllodes with 1 or 2 glands, the lowermost 5–15 mm above base, not strongly indented or angled; heads bright yellow, with 15–30 flowers; peduncles with appressed golden hairs."	"Acacia decora"
245	"Without the above combination of characters."	246
246	"Phyllodes <5 times as long as broad, ± thick and ± rigid, elliptic to ± obovate."	247
246	"Phyllodes >5 times as long as broad, ± thin and flexible, oblong to oblanceolate or narrow-elliptic."	255
247	"Phyllodes with usually 2–4 prominent marginal glands."	248
247	"Phyllodes with 1 gland towards base or gland absent."	249
248	"Phyllodes usually acute, with a straight mucro; heads with 6–12 flowers; pods 4–6 mm wide; widespread, chiefly on the ranges."	"Acacia amoena"
248	"Phyllodes obtuse, without a mucro; heads with 12–25 flowers; pods 5–8 mm wide; escarpment ranges SE of Cooma (SC, ST)."	"Acacia kydrensis"
249	"Immature phyllodes hairy; branchlets hairy."	250
249	"Immature phyllodes glabrous; branchlets glabrous."	251
250	"Phyllodes mostly 2.5- 6 cm long; pods 7–10 mm wide; racemes with 8–26 flower heads."	"Acacia clunies-rossiae"
250	"Phyllodes usually 1–2.5 cm long; pods 8–15 mm wide; racemes with 3–8 flower heads."	"Acacia kybeanensis"
251	"Phyllodes with 1 marginal gland adjacent to pulvinus; heads with 30–50 flowers; pods 7–10 mm wide."	"Acacia melvillei"
251	"Phyllodes without or with 1 marginal gland at least a few mm from the pulvinus; heads with <30 flowers; pods 2.5–8 mm wide."	252
252	"Flower heads pale yellow to white; pods 2.5–5 mm wide; phyllodes usually asymmetric with midvein acentral; phyllodes 2–9 cm long and 5–30 mm wide."	"Acacia myrtifolia"
252	"Flower heads bright yellow; pods 5–15 mm wide; phyllodes symmetric to asymmetric, midvein central or rarely ± acentral; phyllodes 1–4.5 cm long and 3–14 mm wide."	253
253	"Heads with 3–5 flowers; phyllodes ± narrow-elliptic."	"Acacia lunata"
253	"Heads with 5–29 flowers; phyllodes mostly elliptic or obovate, rarely ± narrow-elliptic."	254
254	"Branchlets, raceme axes and calyces usually not pruinose; phyllodes ± narrow-elliptic, ± acute to obtuse, 2–11 mm wide; heads 7–29-flowered."	"Acacia buxifolia"
254	"Branchlets (at least when young), raceme axes and calyces (especially in bud) usually pruinose; phyllodes obovate to elliptic, obtuse, 6–14 mm wide; heads 5–10-flowered."	"Acacia leucolobia"
255	"Phyllodes 1–2 mm wide; confined to the Grafton area."	"Acacia ruppii"
255	"Phyllodes >3 mm wide; on the coast and ranges, but not in the Grafton area."	256
256	"Phyllodes glaucous or subglaucous; heads with 5–14 flowers."	257
256	"Phyllodes green; heads with 15–30 flowers."	258
257	"Phyllodes usually 5–10 mm wide; heads with 5–8 flowers; from Bendethera to Bega district (SC, ST)."	"Acacia covenyi"
257	"Phyllodes 3–5 mm wide; heads with 6–14 flowers; in the Newnes area and south from the Snowy Mtns (CT, ST)."	"Acacia kybeanensis"
258	"Phyllodes 4–16.5 cm long, margins not thickened; pods 7–13 mm wide; widespread in western districts, west from the upper Hunter Valley (NC, NWS, CWS, SWS, NWP, SWP, NFWP, SFWP)."	"Acacia salicina"
258	"Phyllodes 2.5–6 cm long, margins thickened; pods 5–7 mm wide; confined to limestone near the Wombeyan Caves (CT)."	"Acacia chalkeri"
259	"Mature phyllodes hairy, at least on the margins or midvein."	260
259	"Mature phyllodes glabrous or almost so."	271
260	"Phyllodes usually <5 cm long."	261
260	"Phyllodes >5 cm long."	262
261	"Branchlets densely hairy; phyllodes ± narrow-oblanceolate, 1–2.5 cm long, hairy; 1–3 flower heads in axils or on axillary axis 6–10 mm long; north from the Torrington district."	"Acacia torringtonensis"
261	"Branchlets glabrous or sparsely hairy; phyllodes ± linear to narrow-lanceolate, 2–5 cm long, hairy mainly on the margins; 8–25 flower heads in racemes usually 2.5–7.5 cm long; widespread on the coast and ranges, west to Inverell district."	"Acacia fimbriata"
262	"Phyllodes usually <3 mm wide."	263
262	"Phyllodes mostly >3 mm wide."	266
263	"Phyllodes with 1 vein and with a prominent basal gland; heads with 14–23 flowers; raceme axis usually 2.5–5 cm long; pods irregularly twisted; NT species."	"Acacia ingramii"
263	"Phyllodes with >1 vein, basal gland small or absent; heads with 25–50 flowers; raceme axis 0.1–2.5 cm long; pods straight to curved; western species."	264
264	"Phyllodes 15–35 cm long."	"Acacia coriacea"
264	"Phyllodes 5–14 cm long."	265
265	"Phyllodes ± compressed terete, 1–2 mm wide; pods 2–5 mm wide; flower heads onsimple axillary peduncles or an axillary axis 1–5 mm long."	"Acacia loderi"
265	"Phyllodes linear to very narrow-elliptic, 2–7 mm wide; pods 5–7 mm wide; flower heads on an axillary axis 1–20 mm long."	"Acacia calcicola"
266	"Phyllodes ± oblanceolate, margin usually prominently indented at gland, usually at least 10 mm above base; heads ± ovoid; confined to the Blue Mtns, from Newnes to near Robertson."	"Acacia dorothea"
266	"Phyllodes ± linear to elliptic, rarely ± oblanceolate, glands 1–3, usually inconspicuous; heads globose; western species, chiefly on the Slopes and ranges north from Burrinjuck."	267
267	"Raceme axis 3–9 cm long; pods glabrous."	268
267	"Raceme axis 0.1–2.5 cm long; pods finely hairy."	269
268	"Heads with 12–20 flowers; phyllodes mostly 5–8 cm long and 3–5 mm wide, bluish green, with 1 small gland near base; chiefly flowers July to Oct."	"Acacia caesiella"
268	"Heads with 20–40 flowers; phyllodes mostly 8–15 cm long and 6–12 mm wide, silvery, with 1–3 glands along margin; chiefly flowers from Nov. to Jan., but occasionally July and Aug."	"Acacia neriifolia"
269	"Pods 8–20 mm wide, not moniliform, margins winged; phyllodes 4–10 mm wide, ± curved, with asymmetric base; stipules persistent."	"Acacia pendula"
269	"Pods 5–7 mm wide, moniliform, not winged; phyllodes 2–7 mm wide, straight to slightly curved, with symmetric base; stipules caducous."	270
270	"Raceme axis 0.1–0.3 cm long; west of Enngonia and south to Willandra Creek (SWS, NFWP)."	"Acacia cana"
270	"Raceme axis 1–2 cm long; extreme NW of the State near Tibooburra (NFWP)."	"Acacia calcicola"
271	"Phyllodes reddish, bipinnate leaves sometimes present on mature growth."	"Acacia latisepala"
271	"Phyllodes not reddish, bipinnate leaves usually not present on mature growth."	272
272	"Young racemes enclosed by imbricate bracts c. 5 mm long; flower heads pale yellow to almost white; pods 6–17 mm wide; phyllodes 5–15 cm long and usually 3–8 mm wide and ± subglaucous."	273
272	"Without the above combination of characters."	274
273	"Pods 2–5 cm long, 8–19 mm wide; seeds transverse; heads 3–10-flowered; peduncles 1–5 mm long; racemes with 5–10 heads; widespread on the coast and ranges."	"Acacia suaveolens"
273	"Pods 5–13 cm long, 6–12 mm wide; seeds longitudinal; heads 12–17-flowered; peduncles 6–10 mm long; racemes with 12–17 heads; phyllodes with 1 gland 5–10 mm above base; often cultivated, occasionally naturalized."	"Acacia iteaphylla"
274	"Phyllodes regularly <5 cm long."	275
274	"Phyllodes mostly >5 cm long."	282
275	"Phyllodes 0.4–2 mm wide; branchlets not reddish brown; heads with either 4–12 or >30 flowers, pale yellow to ± white or yellow to bright yellow."	276
275	"Phyllodes mostly 2–5 mm wide (range 1.5–7 mm); branchlets usually reddish brown; heads with 15–25 flowers, bright yellow."	279
276	"Phyllodes ± narrow-oblanceolate; heads with 30–35 flowers, bright yellow; confined to the Grafton district (NC)."	"Acacia ruppii"
276	"Phyllodes ± linear; heads with 4–12 flowers, dark to pale yellow to ± white; south from the Hunter Valley (NC, CC, CT)."	277
277	"Midvein not visible; branchlets with short stiff hairs; heads usually with 4–6 flowers; confined to the Lithgow and Orange districts (CT)."	"Acacia meiantha"
277	"Midvein usually visible; branchlets mostly glabrous; heads with 5–12 flowers; south from the Hunter Valley (NC, CC, CT, ST)."	278
278	"Flower heads pale yellow to ± white; pods 8–15 mm wide; from the Hunter Valley to the Narooma district (NC, CC, CT)."	"Acacia linifolia"
278	"Flower heads bright yellow; pods 4–6 mm wide; south from Cooma (ST)."	"Acacia boormanii"
279	"Branches sparsely hairy; phyllodes with 1 or 2 glands, the lowermost 5–15 mm above base; peduncles with appressed golden hairs; widespread in western districts, but chiefly on the Western Slopes."	"Acacia decora"
279	"Branchlets glabrous; gland absent or 1 along margin; peduncles glabrous or very sparsely hairy with whitish hairs; chiefly south and east from near Rylstone, also near Jerilderie."	280
280	"Phyllodes ± narrow-elliptic; peduncles 1–5 mm long; racemes with 7–14 heads; south from Tumut, chiefly in the Kybean Ra. (ST)."	"Acacia kettlewelliae"
280	"Phyllodes ± oblanceolate; peduncles 2–4 mm long; racemes with 2–7 heads; north and west from the Budawang Ra."	281
281	"Phyllodes usually 3–5 mm wide; pods 7–10 mm wide, not moniliform; from Rylstone district to the Budawang Ra. (SC, CT, ST)."	"Acacia hamiltoniana"
281	"Phyllodes 1.5–3 mm wide; pods 3–3.5 mm wide, ± moniliform; from near Jerilderie and possibly near Bourke (SWP, NWP)."	"Acacia williamsonii"
282	"Immature phyllodes hairy; branchlets hairy."	283
282	"Immature phyllodes glabrous; branchlets glabrous or hairy."	287
283	"Inflorescences with axis 2–9 cm long."	284
283	"Inflorescences with axis 0.2–1.5 cm long."	285
284	"Heads with 12–20 flowers; phyllodes mostly 5–8 cm long and 3–5 mm wide, bluish green, with 1 small gland near base; chiefly flowers July to Oct."	"Acacia caesiella"
284	"Heads with 20–40 flowers; phyllodes mostly 8–15 cm long and 5–12 mm wide, usually silvery, with 1–3 glands along margin; chiefly flowers from Nov. to Jan., but occasionally July and Aug."	"Acacia neriifolia"
285	"Stipules usually persistent; peduncles hairy; pods 10–18 mm wide, margins winged."	"Acacia pendula"
285	"Stipules caducous; peduncles glabrous or hairy; pods 7–10 mm wide, not winged."	286
286	"Phyllodes usually ± curved; flower heads bright yellow, with 30–50 flowers; seeds transverse."	"Acacia melvillei"
286	"Phyllodes mostly ± straight; flower heads pale yellow or whitish, with 15–30 flowers; seeds longitudinal."	"Acacia cambagei"
287	"Branchlets hairy."	288
287	"Branchlets glabrous or rarely scurfy from small scales."	289
288	"Phyllodes ± very narrow-elliptic to ± linear, 2–10 mm wide, midvein prominent; heads with 30–45 flowers; in the Broken Hill area (NFWP)."	"Acacia rivalis"
288	"Phyllodes ± terete, 0.4–1.2 mm wide, midvein not visible; heads usually with 4–6 flowers; confined to the Lithgow and Orange districts (CT)."	"Acacia meiantha"
289	"Phyllodes neither terete nor ± linear, mostly ± oblong to ± elliptic or oblanceolate, <20 times as long as broad, mostly 3–20 mm wide."	290
289	"Phyllodes ± compressed-terete to ± linear or very narrow-oblanceolate, >20 times as long as broad, 1–5 mm wide."	300
290	"Phyllodes with 2–5 glands spread along the margin."	291
290	"Phyllodes without glands, or only 1 gland present."	294
291	"Phyllodes ± oblanceolate, apex obtuse (or rarely subacute), margins thickened, upwardly curved and well-separated on branchlets; flower heads bright yellow, 6–12 on a ± zigzagged axis."	"Acacia gladiiformis"
291	"Without the above combination of characters."	292
292	"Phyllodes 8–20 mm wide; heads 50–70-flowered; pods 5–6 mm wide."	"Acacia beckleri"
292	"Phyllodes mostly 5–12 mm wide; heads 15–30-flowered; pods 7–13 mm wide."	293
293	"Phyllodes green, thick, wrinkled when dry, usually with a straight mucro; pods ± woody, constricted between the seeds, surfaces ± smooth, easily breaking into 1-seeded segments; flower heads bright yellow."	"Acacia ligulata"
293	"Phyllodes greyish, flaccid, not wrinkled when dry, without or with an oblique or hooked mucro; pods not deeply constricted between the seeds, surfaces rough, not breaking into 1-seeded segments; flower heads pale yellow to ± white."	"Acacia salicina"
294	"Restricted to the ranges south from Tumut (ST); branchlets reddish brown."	"Acacia kettlewelliae"
294	"Western species, widespread, chiefly west from the Hunter Valley, also in coastal districts, not in the ST; branchlets not reddish brown."	295
295	"Plants with long drooping branchlets, branchlets usually zigzagged; pods ± woody; phyllodes glabrous and with 2–5 small glands along margin."	"Acacia salicina"
295	"Plants with spreading or short drooping branchlets, branchlets not obviously zigzagged; pods not woody; phyllodes finely hairy to glabrous, with 1 gland, or if >1 then phyllodes and branchlets silvery hairy."	296
296	"Phyllodes finely hairy; stipules usually persistent; peduncles hairy; pods 10–18 mm wide, margins winged."	"Acacia pendula"
296	"Phyllodes glabrous or mostly glabrous; stipules caducous; peduncles glabrous or hairy; pods 4–12 mm wide, not winged."	297
297	"Phyllodes mostly 10–30 cm long and 10–50 mm wide; pods 4–6 mm wide."	"Acacia saligna"
297	"Phyllodes usually 4–12 cm long and 2–10 mm wide; pods usually 7–12 mm wide."	298
298	"Pods 4–6 mm wide; flower heads usually 4–12 in an axillary raceme 1.5–4 cm long."	"Acacia rivalis"
298	"Pods usually 7–10 mm wide; flower heads 2–20 on an axillary axis 2–9 mm long;."	299
299	"Phyllodes usually ± curved; flower heads bright yellow, with 30–50 flowers; seeds ± transverse."	"Acacia melvillei"
299	"Phyllodes mostly ± straight; flower heads pale yellow or whitish, with 15–30 flowers; seeds longitudinal."	"Acacia cambagei"
300	"Phyllodes with 1–3 glands spread along the margin."	301
300	"Phyllodes without or with only 1 marginal gland."	303
301	"Heads with 20–30 flowers; pods 5–7.5 mm wide; south from the Hunter Valley (CT, CWS, SWS)."	"Acacia linearifolia"
301	"Heads with 10–20 flowers; pods 10–13 mm wide; north from Deepwater and Torrington districts (NC, NT, NWS)."	302
302	"Peduncles 3–4 mm long, glabrous; raceme axis 2.5–3.5 cm long, with 8–11 heads; basal gland rounded and ± protruding, usually about 3–4 cm from base."	"Acacia adunca"
302	"Peduncles 2–5 mm long, pubescent; raceme axis 3–5 cm long, with 5–9 heads; basal gland ± elongated and depressed, usually 1–2.5 cm from base."	"Acacia macnuttiana"
303	"Phyllodes ± terete or 4-angled, sometimes ± compressed, 0.5–1.5 mm wide, usually >30 times as long as broad, green."	304
303	"Phyllodes ± linear, usually >1.5 mm wide (range 1–5 mm), mostly <30 times as long as broad, glaucous, greyish or green."	305
304	"Phyllodes thin and flexible; heads with 30–40 flowers; inflorescences with axis 0.5–2 cm long; chiefly from Nymagee to Griffith (CWS, SWP)."	"Acacia calamifolia"
304	"Phyllodes thick and leathery; heads with 12–20 flowers; inflorescences with axis 2.5–4 cm long; from the upper Hunter valley to Dubbo and Warialda (NWS, CWS, NWP)."	"Acacia subulata"
305	"Far-western species, west from Cobar and Jerilderie districts; pods 3–6 mm wide, ± moniliform."	306
305	"Widespread species, from the escarpment ranges west to the Warrumbungle N.P. and the Torrington district (NC, NT, CT, ST, NWS); pods 4–12 mm wide, not moniliform or sometimes scarcely moniliform."	307
306	"Inflorescences with axis <1 cm long; peduncles 3–8 mm long; phyllodes usually 2.5–5 mm wide, very narrow-elliptic; pods finely hairy with appressed hairs."	"Acacia cana"
306	"Inflorescences with axis 1–3 cm long; peduncles 2–3 mm long; phyllodes usually 1.5–2.5 mm wide, narrow-oblanceolate; pods glabrous."	"Acacia williamsonii"
307	"South from the Blue Mtns (CT, ST)."	308
307	"North from the Hunter Valley (NC, NT, NWS)."	309
308	"Phyllodes 1–3 mm wide; racemes with axis 1–4 cm long; heads with 5–10 flowers; funicle short, not encircling seed; on the ranges south from Cooma district (ST)."	"Acacia boormanii"
308	"Phyllodes 3–5 mm wide; racemes with axis 4–6 cm long; heads with 20–30 flowers; funicle ± encircling seed; restricted to the Blue Mtns (CT)."	"Acacia flocktoniae"
309	"Confined to the escarpment ranges east of Tenterfield (NC, NT); phyllodes with marginal gland exserted; flower heads pale yellow to white."	"Acacia floydii"
309	"On Slopes and ranges west of Tenterfield or if east of Tenterfield flower heads bright yellow and phyllodes with 1–3 marginal glands, but glands not exserted."	310
310	"Pods 8–13 mm wide; heads with 10–16 flowers."	311
310	"Pods 5–7 mm wide; headsusually with 16–30 flowers."	312
311	"Racemes with 5–9 heads; flower heads bright yellow; pods 10–13 mm wide; chiefly recorded for Boonoo Boonoo N.P. and the Torrington district."	"Acacia macnuttiana"
311	"Racemes with 10–15 heads; flower heads pale coloured; pods 8–10 mm wide; restricted to Pindari Dam."	"Acacia acrionastes"
312	"Pods usually 6–15 cm long; seeds with short funicle, not encircling seed, whitish; flower heads bright to pale yellow; chiefly in the Torrington district."	"Acacia betchei"
312	"Pods usually 5–8 cm long; seeds with funicle ± encircling seed, reddish; racemes with axis 2–3 cm long; flower heads bright yellow; confined to the Warrumbungle N.P."	"Acacia forsythii"
313	"Phyllodes usually <2.5 cm long."	314
313	"Phyllodes usually >2.5 cm long."	336
314	"Phyllodes >3 mm wide."	315
314	"Phyllodes <3 mm wide."	319
315	"Branchlets ± angled or flattened, glabrous or sparsely hairy; phyllodes ± obtuse; pods 2–4 mm wide, ± straight, curved to twisted or coiled."	316
315	"Branchlets ± terete, densely hairy; phyllodes ± acute; pods 6–10 mm wide, straight."	318
316	"Branchlets and phyllodes resinous; heads with 35–50 flowers; peduncles subtended by ovate bracts c. 2 mm long, usually persisting at least till flowers open; pods ± straight."	"Acacia ausfeldii"
316	"Branchlets and phyllodes not resinous; heads with 8–25 flowers; peduncles not subtended by ovate bracts; pods curved to twisted or coiled."	317
317	"Phyllodes 2–7 cm long, glabrous; peduncles shorter than the phyllodes; pods 2–3 mm wide, curved or twisted."	"Acacia microcarpa"
317	"Phyllodes 0.5–2 cm long, hairy; peduncles usually longer than the phyllodes; pods 3–4 mm wide, twisted or coiled many times."	"Acacia acinacea"
318	"Phyllodes hispid with short stiff hairs to ± glabrous, margins thickened with prominent tuberculate-based hairs, with a marginal gland near the middle of the phyllode; pods glabrous, 1- or 2-seeded; widespread north from Nowra (NC, CC, SC, NT, NWS)."	"Acacia hispidula"
318	"Phyllodes sparsely to moderately hairy with ± straight to crisped appressed hairs, margins not thickened, with marginal gland adjacent to the pulvinus; pods hairy, 2–7-seeded; from Captains Flat to Bombabla district (ST)."	"Acacia costiniana"
319	"Phyllodes ± terete or angled, 0.4–1.5 mm wide, venation usually obscure."	320
319	"Phyllodes ± flat, 1–3 mm wide, 1 longitudinal vein prominent or sometimes all veins obscure."	326
320	"Phyllodes 1.5–4.5 cm long; widespread north and west from Gulgong area and in the Torrington-Emmaville district (NT, NWS, CWS, NWP)."	321
320	"Phyllodes usually 0.3–1.5 cm long, not conspicuously grooved when dried; widespread species (NC, CC, NT, NWS)."	322
321	"Phyllodes without a longitudinal groove, veins absent or midvein slightly raised, lower margin not broader than upper margin; chiefly in the Pilliga Scrub and south to Gulgong area (NWS, CWS, NWP)."	"Acacia pilligaensis"
321	"Phyllodes with a longitudinal groove when dried, lower margin slightly broader than upper margin; rare, confined to the Torrington-Emmaville district (NT, NWS)."	"Acacia burbidgeae"
322	"Phyllodes regularly whorled, whorls usually >1 cm apart; marginal gland absent."	"Acacia baueri"
322	"Phyllodes not regularly whorled, scattered or clustered or irregularly whorled; marginal gland basal, small or inconspicuous or rarely absent."	323
323	"Peduncles 2–4 mm long; heads usually with 8–10 flowers; pods 1–2.5 cm long and 2.5–4 mm wide; marginal gland absent."	"Acacia baueri"
323	"Peduncles 5–16 mm long; heads with 16–38 flowers; pods usually >2.5 cm long and 6–15 mm wide; marginal gland present but inconspicuous."	324
324	"Phyllodes warty, at first hairy with tuberculate-based hairs, then becoming glabrous; confined to the lower Blue Mtns and Glenorie district (CC)."	"Acacia gordonii"
324	"Phyllodes smooth, glabrous or with a few scattered hairs, not tuberculate-based; north from Glen Innes district (NC, NT, NWS)."	325
325	"Flower heads ± white to bright yellow, with 20–27 flowers; branchlets sparsely hairy with longish crisped hairs or densely hairy with very short hairs; phyllodes glabrous."	"Acacia brunioides"
325	"Flower heads bright yellow, with 32–38 flowers; branchlets densely hairy with longish crisped hairs; phyllodes with hairs confined to lower edge."	"Acacia beadleana"
326	"Branchlets modified into spines; phyllodes obcuneate, 2–8 mm long, without marginal glands."	"Acacia acanthoclada"
326	"Branchlet tips not modified into spines; phyllodes ± linear to narrow-elliptic or narrow-oblanceolate, 7–25 mm long, with marginal gland near the pulvinus, often inconspicuous, or rarely absent."	327
327	"Phyllodes with 1 longitudinal vein prominent."	328
327	"Phyllodes with obscure venation."	334
328	"Midvein ± central along phyllode."	329
328	"Midvein not central, closer to one of the margins."	332
329	"Phyllodes and branchlets ± resinous, with simple and glandular hairs."	"Acacia aspera"
329	"Phyllodes and branchlets not resinous, with simple but not glandular hairs, or phyllodes glabrous."	330
330	"Phyllodes mostly >2 mm wide; recorded only from Parkes district (CWS)."	"Acacia centrinervia"
330	"Phyllodes mostly <2 mm wide; more widespread species (NWS, CWS, NWP)."	331
331	"Phyllodes 1.5–4 cm long, mostly >2.5 cm long; peduncles 2–6 mm long; in the Pilliga Scrub and south to Gulgong (NWS, CWS, NWP)."	"Acacia pilligaensis"
331	"Phyllodes mostly 1–2.5 cm long; peduncles 3–10 mm long; north from the Bourke district (NWP)."	"Acacia johnsonii"
332	"Midvein closer to the lower margin, phyllodes grooved; phyllodes >10 times as long as broad, 1.5–4.5 cm long."	"Acacia burbidgeae"
332	"Midvein closer to the upper margin, phyllodes not grooved; phyllodes <10 times as long as abroad, 0.7–2.5 cm long."	333
333	"Phyllodes ± narrow-elliptic, straight or slightly curved, sparsely hairy to glabrous; heads with 10–18 flowers; peduncles 5–12 mm long."	"Acacia lineata"
333	"Phyllodes ± oblanceolate, bent upwards just above the pulvinus at the gland, glabrous; heads with 4–10 flowers; peduncles 2–4 mm long."	"Acacia flexifolia"
334	"Peduncles 3–11 mm long; pods 4–6 mm wide, strongly curved or twisted, hairy; seeds longitudinal; phyllodes without or with 1 marginal gland near the middle of the phyllode."	"Acacia torringtonensis"
334	"Peduncles 6–15 mm long; pods 9–20 mm wide, straight, glabrous and glaucous; seeds transverse; phyllodes with 1 inconspicuous marginal gland adjacent to the pulvinus."	335
335	"Young phyllodes glabrous or with a few scattered hairs, peduncles c. 0.2 mm diam. and sparsely hairy; pods 10–15 mm wide; chiefly north from Warialda and Moree (NWS, NWP)."	"Acacia conferta"
335	"Young phyllodes pubescent, peduncles c. 0.5 mm diam. and pubescent; pods mostly 8–10 mm wide; widespread, north from Katoomba and Hillston, chiefly on the Slopes (NC, CT, NWS, CWS, NWP, SWP)."	"Acacia mariae"
336	"Heads ± ovoid."	337
336	"Heads globose."	340
337	"Bark curling off in narrow strips; phyllodes ± terete, 13–18 cm long, 0.5–1 mm wide."	"Acacia curranii"
337	"Bark not curling; phyllodes linear to very narrow-elliptic, 2.5–25 cm long, 1–5 mm wide."	338
338	"Phyllodes usually 10–25 cm long; northern species (NC, NT, NWS)."	"Acacia granitica"
338	"Phyllodes mostly 2.5–10 cm long; southern and central Slopes species."	339
339	"Phyllodes ± linear, 5–10 cm long, 1–2 mm wide; branchlets and phyllodes not resinous; pods hairy; south from the Holbrook district (SWS)."	"Acacia phasmoides"
339	"Phyllodes ± oblanceolate, 2.5–5 cm long; 2–5 mm wide; branchlets and phyllodes resinous; pods glabrous; chiefly in the Dubbo, Gilgandra and Mendooran area (CWS)."	"Acacia ixodes"
340	"Phyllodes mostly >2 mm wide (usually 2–10 mm wide), flat, linear to lanceolate, elliptic or oblanceolate or ± ovate, usually <13 times as long as broad, usually with only 1 prominent longitudinal vein visible."	341
340	"Phyllodes <2 mm wide (usually 0.5–1.5 mm wide), ± terete or angled, usually >13 times as long as broad, no venation visible, though sometimes longitudinally ribbed when dry."	353
341	"Branchlets resinous and phyllodes usually resinous and dotted with resin glands."	342
341	"Branchlets and phyllodes not resinous, phyllodes not dotted with resin glands."	347
342	"Phyllodes usually <10 times as long as broad, 1–6 cm long."	343
342	"Phyllodes mostly >10 times as long as broad; usually 2–14 cm long."	345
343	"Phyllodes with 2 glands, 1 near the apex and one near the base; heads with 20–30 flowers."	"Acacia ixodes"
343	"Phyllodes with only a basal gland; heads with 30–50 flowers."	344
344	"Phyllodes 1–4 cm long, ± hairy, apex ± pungent-pointed; pods hairy, curved, twisted or coiled."	"Acacia aspera"
344	"Phyllodes 2–7 cm long, glabrous, apex ± obtuse with a mucro but not pungent; pods glabrous, ± straight."	"Acacia ausfeldii"
345	"Pods 4–6 mm wide; phyllodes with 1–4 glands along margin; phyllodes with a midvein and a less prominent longitudinal vein near the upper margin; widespread species (CC, NT, CT, ST, NWS, CWS, SWS, SWP)."	"Acacia verniciflua"
345	"Pods 3–4 mm wide; phyllodes with 1 gland towards base; phyllodes with midvein only, sometimes with a secondary vein formed by the coalescing of the lateral veins; more restricted species (CC, SC, CT, ST)."	346
346	"Phyllodes usually 1–3.5 mm wide; heads 10–25-flowered; south from the Nowra district (CC, SC, ST)."	"Acacia cognata"
346	"Phyllodes mostly 5–15 mm wide; heads 20–40-flowered; Western Blue Mtns (CT)."	"Acacia leprosa"
347	"Phyllodes 1–3 cm long, margins with prominent tuberculate-based hairs; pods 6–10 mm wide, 1 or 2-seeded."	"Acacia hispidula"
347	"Phyllodes 2–14 cm long (usually >3 cm long), margins not as above, ± smooth; pods 3–6 mm wide; >2-seeded."	348
348	"Phyllodes with 1 or 2 marginal glands near the middle."	349
348	"Phyllodes with 1 marginal gland near the base."	350
349	"Phyllodes 2–7 cm long; heads 1–4 on axillary peduncles, each with 14–25 flowers; pods 2–3 mm wide, twisted; western species (CWS, SWP, SFWP)."	"Acacia microcarpa"
349	"Phyllodes 4–14 cm long; heads in racemes or rarely on axillary peduncles, each with 30–45 flowers; pods 4–6 mm wide, ± straight; Broken Hill district (NFWP)."	"Acacia rivalis"
350	"Branchlets densely hairy; phyllodes finely hairy; pods 4–6 mm wide; western species (SWS, NFWP)."	351
350	"Branchlets glabrous or sparsely hairy; phyllodes mostly glabrous; pods 1.5–4 mm wide; widespread species but not in NFWP or SWS."	352
351	"Inflorescences with axis usually 1–3 mm long, rarely to 10 mm; west of Enngonia and south to Willandra Creek (SWS, NFWP)."	"Acacia cana"
351	"Inflorescences with axis 1–20 mm long; extreme NW of the State near Tibooburra (NFWP)."	"Acacia calcicola"
352	"Phyllodes 5–10 mm wide (occasionally 20); heads with 28–55 flowers; pods twisted, 1.5–3 mm wide; western species (CWS, SWP, SFWP)."	"Acacia halliana"
352	"Phyllodes 2–3 mm wide; heads with 20–30 flowers; pods ± straight, 3–4 mm wide; north-eastern species (NC, NT)."	"Acacia juncifolia"
353	"Most phyllodes <4 cm long."	354
353	"Most phyllodes >4 cm long."	356
354	"Pods usually twisted or coiled, 2–3 mm wide, ± minutely hairy; phyllodes mostly 3–13 cm long, apex pungent-pointed to acute."	"Acacia rigens"
354	"Pods ± straight to slightly curved, 3–4 mm wide, glabrous; phyllodes usually 1.5–4 cm long, apex subacute to acute."	355
355	"Peduncles 4–10 mm long; phyllodes with a longitudinal groove when dried; rare, confined to the Torrington-Emmaville district."	"Acacia burbidgeae"
355	"Peduncles 2–6 mm long; phyllodes not grooved; widespread on the Slopes, chiefly south from the Pilliga Scrub."	"Acacia pilligaensis"
356	"Phyllodes with 1 marginal gland near the middle of the phyllode, and phyllode usually incurved ± abruptly at gland; flowers 4-merous."	"Acacia havilandiorum"
356	"Phyllodes with a marginal gland near the base (1–10 mm from base), phyllodes ± straight or evenly curved; flowers 5-merous."	357
357	"Gland on phyllode 5–10 mm above base; phyllode apex ± hooked; flower heads usually in racemes with axis 5–20 mm long."	"Acacia calamifolia"
357	"Glands on phyllodes <4 mm from base; phyllode apex not prominently hooked; flower heads on axillary peduncles or on axillary axis <1 mm long."	358
358	"Pods ± minutely hairy, 2–3 mm wide, strongly curved, twisted or coiled; phyllodes 1–1.5 mm wide."	"Acacia rigens"
358	"Pods ± glabrous, 4–6 mm wide, ± straight; phyllodes c. 1 mm wide."	359
359	"Phyllodes usually 4–8 cm long; pods 3.5–5 mm wide, not moniliform; in the Blue Mtns from near Woodford to Mt Victoria (CC, CT)."	"Acacia ptychoclada"
359	"Phyllodes mostly 8–20 cm long; pods 3–4 mm wide, ± moniliform; widespread north of Glenbrook and extending inland (NC, CC, NWS, NWP)."	"Acacia juncifolia"
360	"Pinnules >2 mm wide."	361
360	"Pinnules <2 mm wide."	377
361	"Pinnules mostly >2 cm long."	362
361	"Pinnules <2 cm long."	363
362	"Pinnules lanceolate, mostly 2.5–5 cm long; leaves with rachis mostly 5–22 cm long; pods 10–15 mm wide; Bellinger R. to the Budawang Ra. (NC, CC, NT, CT)."	"Acacia elata"
362	"Pinnules ± narrow-elliptic, usually 1–2.5 cm long; leaves with rachis usually 1–5 cm long: pods 7–11 mm wide; confined to Bega district (SC)."	"Acacia blayana"
363	"Lower surface of the pinnules distinctly paler than the upper surface."	364
363	"Lower surface of the pinnules ± the same colour as the upper surface."	366
364	"Petioles 0.7–4 cm long; leaves with usually 2–6 pairs of pinnae; pinnules mostly flat."	"Acacia terminalis"
364	"Leaves ± sessile or with petiole to 0.5 cm long; most leaves with 3–13 pairs of pinnae; pinnules recurved."	365
365	"Branchlets, petioles and inflorescence axes ± terete, mostly ridged but not winged, hairy."	"Acacia kulnurensis"
365	"Branchlets, petioles and inflorescence axes ± tetragonal with conspicuous undulate wings at each angle, ± glabrous."	"Acacia alaticaulis"
366	"Branchlets sparsely to densely hairy."	367
366	"Branchlets glabrous or almost so."	371
367	"Pinnae with usually 11–35 pairs of pinnules, hairy at least on the margins; jugary and interjugary glands usually present on most leaves."	368
367	"Pinnae with 2–14 pairs of pinnules; pinnules usually glabrous or almost so; jugary glands absent or minute, interjugary glands usually absent or rarely 1 at base of terminal pair of pinnae."	369
368	"Pinnules ± narrow-oblong, ± glabrous with margins appressed-hairy; petiolar, jugary and interjugary (1–7) glands prominent; from Gibraltar Ra. to Nymboida N.P. (NC, NT)."	"Acacia cangaiensis"
368	"Pinnules ± lanceolate to ovate, densely silvery-hairy; petiolar, jugary and interjugary (1–3) glands often present, but small; Gloucester district to Howes Valley (NC, CC, CWS)."	"Acacia fulva"
369	"Leaves with rachis <3 cm long; pods usually twisted, margins often alternately recurved to incurved."	"Acacia polybotrya"
369	"Leaves with rachis usually >3 cm long; pods ± flat and straight."	370
370	"Pinnae with 9–14 pairs of pinnules; stems and leaves often reddish; phyllodes usually present with bipinnate leaves on mature plants."	"Acacia rubida"
370	"Pinnae with 2–8 pairs of pinnules; stems and leaves ± glaucous; phyllodes not present on mature plants."	"Acacia spectabilis"
371	"Branchlets distinctly pruinose; pinnae mostly with 12–35 pairs of pinnules; heads with 30–60 flowers."	372
371	"Branchlets not pruinose; pinnae usually with 4–15 pairs of pinnules; heads with 15–35 flowers."	373
372	"Petioles with 1 prominent elongate gland; flower heads bright yellow; north from Uralla district (NT, NWS)."	"Acacia pruinosa"
372	"Petioles with 1 raised orbicular gland; flower heads pale yellow; from Lane Cove R. To Maitland (NC, CC, ?CWS)."	"Acacia schinoides"
373	"Phyllodes sometimes present on mature plants; petiole 1–4.5 cm long with 1 prominent gland 3–15 mm above base; pinnae 1–3 pairs; heads 2–10, with inflorescence axis 0.6–5 cm long; in the Torrington district and north from Bald Rock (NT)."	"Acacia latisepala"
373	"Without the above combination of characters and distribution."	374
374	"Pinnules hairy with appressed hairs, 10–34 mm long; flower heads usually in axillary and terminal panicles; confined to the Bega district (SC)."	"Acacia blayana"
374	"Pinnules glabrous or sometimes hairy but hairs not ± appressed, 3–20 mm long; flower heads mostly in axillary racemes, rarely in panicles; widespread in the State, but not in SC."	375
375	"Petioles 1–4 cm long and with a prominent gland, depressed and elongated; pinnae with 6–17 pairs of pinnules."	"Acacia debilis"
375	"Petioles 0.1–1.5 cm long and with an inconspicuous or minute gland (sometimes appearing absent); pinnae with 2–12 pairs of pinnules."	376
376	"Heads with 12–20 flowers; peduncles 3–10 mm long; raceme axis 5–21 cm long; pinnae usually 3–5 pairs (range 2–7); rachis 1–8.5 cm long; pinnules mostly 7–16 mm long and 2.5–5 mm wide, glabrous; single-stemmed shrubs."	"Acacia spectabilis"
376	"Heads with 20–35 flowers; peduncles 1–4 mm long; raceme axis 1–8 cm long; pinnae usually 2 or 3 pairs (range 1–4), rachis 0.5–3 cm long; pinnules usually 4–8 mm long and 1.5–3 mm wide, hairy or glabrous; several-stemmed shrubs."	"Acacia polybotrya"
377	"Flower heads on simple axillary peduncles."	378
377	"Flower heads on extended axillary or terminal racemes or panicles."	380
378	"Stipules usually 5–25 mm long, spinescent; pods 8–17 mm wide, turgid."	"Vachellia farnesiana"
378	"Stipules minute or absent, not spinescent; pods 4–9 mm wide, not turgid."	379
379	"Peduncles 7–17 mm long, solitary in axils; pods glabrous."	"Acacia mitchellii"
379	"Peduncles mostly 3–10 mm long, usually in racemes with 2–12 flower heads and axis zigzagged, rarely some solitary in axils; pods hairy or rarely glabrous."	"Acacia leptoclada"
380	"Lower surface of the pinnules distinctly paler than the upper surface."	381
380	"Lower surface of the pinnules ± the same colour as the upper surface."	390
381	"Leaves with petiole 0.5–5.3 cm long."	382
381	"Leaves ± sessile or with petiole to 0.5 cm long."	385
382	"Pinnae usually 2–6 pairs (range 1–8); pinnules usually 5–15 pairs (range 5–21), 2–18 mm long, 1–5.5 mm wide; pinnules ± flat."	"Acacia terminalis"
382	"Pinnae mostly 7–25 pairs (range 5–31); pinnules usually 16–60 pairs (range 11–78), 1–10 mm long, 0.5–1.5 mm wide; pinnules recurved or flat."	383
383	"Branchlets often distinctly pruinose; pinnules glabrous to ± hairy."	"Acacia leucoclada"
383	"Branchlets not, or rarely slightly pruinose; pinnules hairy."	384
384	"Pinnules 1.5–3 mm long, upper surface green."	"Acacia mearnsii"
384	"Pinnules 3–10 mm long, upper surface glaucous."	"Acacia silvestris"
385	"Pinnules 1–3 mm long, 14–51 pairs; pinnae 7–27 pairs."	386
385	"Pinnules usually 3–10 mm long, 4–17 pairs; pinnae 1–13 pairs."	387
386	"Leaf rachis with a raised, narrow medial ridge on upper surface; pinnules glabrous; pods 7–12 mm wide, ± flat or slightly raised over seeds (Qld, N.S.W. North Coast)."	"Acacia oshanesii"
386	"Leaf rachis with a shallow, medial groove on upper surface; pinnules ciliate; pods 4–6.5 mm wide, discernibly raised over seeds (N.S.W. South Coast)."	"Acacia yalwalensis"
387	"Jugary glands usually absent, except for 1 at base of terminal pair of pinnae; flower heads cream-coloured to pale yellow; lower Hunter Valley to Mangrove Mtn and Howes Mtn."	388
387	"Jugary glands present at several pinnae pairs; flower heads yellow to bright yellow; south of Sydney and north of Taree."	389
388	"Stems, petioles and inflorescence axes ± terete, mostly ridged but not winged, hairy; Bucketty to Kulnura and Mangrove Mtn area and possibly near Kurri Kurri (NC, CC)."	"Acacia kulnurensis"
388	"Stems, petioles and inflorescence axes ± tetragonal with conspicuous undulate wings at each angle, ± glabrous; restricted to the Howes Mtn area (CC)."	"Acacia alaticaulis"
389	"Jugary glands absent only at basal pair of pinnae; heads with 8–15 flowers, peduncles ± glabrous; pods 5.5–8 mm wide, ± minutely hairy; south of Sydney in the Bargo, Nowra and Goulburn areas (CC, ?SC, CT, ST)."	"Acacia jonesii"
389	"Jugary glands at lowest 1–3 pairs of pinnae and/or upper 1–3 pairs; heads with 15–30 flowers, peduncles golden pubescent; pods 4–6 mm wide, hairy with long fine hairs; inland from Macksville (NC)."	"Acacia chrysotricha"
390	"Leaves with 1–3 pairs of pinnae; pinnules widely spaced, 4–10 pairs per pinnae, glabrous; confined to the Dubbo to Mudgee area and near Armidale (NT, CWS)."	"Acacia muelleriana"
390	"Without the above combination of characters and distribution."	391
391	"Leaves ± sessile or petiole regularly <5 mm long (Note: lowermost pinnae may fall early, so check for scars at base of rachis/petiole)."	392
391	"Leaves with petiole >5 mm long."	401
392	"Leaves strongly glaucous, ash grey-green or bluish; prominent jugary glands except for lowest 1 or 2 pairs of pinnae; inflorescences usually >1.5 times the length of the leaf rachis."	"Acacia baileyana"
392	"Leaves not distinctly glaucous, usually green, sometimes silvery or bluish grey; glands not as above; inflorescences shorter or longer than the length of the leaf rachis."	393
393	"Pinnules 1–2 mm wide."	394
393	"Pinnules 0.4–1 mm wide."	395
394	"Pinnules ± ovate to elliptic, mostly 4–10 mm long; silvery hairy; pods ± velvety hairy; Gloucester district to Howes Valley (NC, CC, CWS)."	"Acacia fulva"
394	"Pinnules ± oblong, mostly 3–4 mm long; finely hairy, with hairs mainly on margins and midvein; pods ± sparsely to moderately hairy; inland from Macksville (NC)."	"Acacia chrysotricha"
395	"Pinnules 0.8–1.5 mm long and ± ovate to ± circular, minutely warty."	"Acacia cardiophylla"
395	"Pinnules usually 1.5–10 mm long, ± oblong or linear, not warty."	396
396	"Leaves with rachis 1–12 mm long; pinnae 1–5 pairs; pinnules glabrous or ciliate; racemes with 2–12 flower heads and axis zigzagged."	"Acacia leptoclada"
396	"Leaves with rachis 8–65 mm long; pinnae 4–30 pairs, or if only 5 pairs then the rachis of leaves >12 mm long; pinnules glabrous or densely hairy; racemes with mostly 10–50 flower heads, axis not prominently zigzagged."	397
397	"Pinnules silvery to bluish grey, densely hairy, especially on lower surface; widespread species, especially on the ranges and Slopes."	398
397	"Pinnules ± green, glabrous or hairy, hairs often pale yellowish to grey; south from Lake Conjola (SC, ST)."	399
398	"Branchlets angled; mature pinnules sparsely hairy, bluish grey to silvery; glands ± orbicular; pods usually 7–14 mm wide, glabrous, ± pruinose."	"Acacia dealbata"
398	"Branchlets ± terete; mature pinnules ± velvety, silvery grey; glands ± hemispherical; pods 4–7 mm wide, densely silvery- to rusty-hairy."	"Acacia mollifolia"
399	"Branchlets with knobbly ridges and minutely hairy; pinnules ± glabrous except for minutely ciliate margins and tuft of hairs at apex; heads with 30–45 flowers; pods 7–10 mm wide, hairy with ± appressed hairs; extreme far south coast (SC)."	"Acacia constablei"
399	"Branchlets ± terete, angled or ridged but without knobbly ridges, hairy with long spreading hairs; pinnules glabrous or sparsely hairy; heads with 8–20 flowers; pods 4–8 mm wide, glabrous, ± pruinose; more widespread, south from Lake Conjola (SC, ST)."	400
400	"Petiole 1–5 mm long; rachis 2–11 cm long with orbicular jugary glands at least at upper 2–10 pairs of pinnae, interjugary glands ± absent; pinnules usually 15–40 pairs; from Lake Conjola to the Bodalla district (SC, ST)."	"Acacia trachyphloia"
400	"Leaves usually sessile; rachis 1.5–6.5 cm long, glands absent or small, often inconspicuous jugary or interjugary glands irregularly present; pinnules usually 5–20 pairs; western Sydney species (CC)."	"Acacia pubescens"
401	"Pinnules 1–2.2 mm long; pinnae with 50–106 pairs of pinnules; petioles 1.3–3.5 cm long; heads with 7–12 flowers; restricted to the escarpment ranges in the Tuross R. Area (ST)."	"Acacia olsenii"
401	"Pinnules usually 2.5–9 mm long; pinnae usually with 7–90 pinnules; petioles 0.5–5.3 cm long; heads with 7–50 flowers; widespread, not restricted as above."	402
402	"Branchlets with knobby ridges and minutely hairy; pinnules ± glabrous except for minutely ciliate margins and tuft of hairs at apex and confined to the extreme far south coast (Nadgee and Disaster Bay areas)."	"Acacia constablei"
402	"Branchlets sometimes ridged but not knobbly; pinnules and distribution not as above."	403
403	"Interjugary glands present."	404
403	"Interjugary glands absent."	410
404	"Pinnules >1 mm wide; young leaves and branchlets pubescent with greyish to silvery hairs; 1–7 interjugary glands between pairs of pinnae, jugary glands present and 1 or 2 petiolar glands present."	"Acacia cangaiensis"
404	"Pinnules <1 mm wide; young leaves and branchlets glabrous or hairy; glands rarely as above."	405
405	"Leaves light green to green or silvery."	406
405	"Leaves dark green."	407
406	"Young leaves whitish silvery; mature leaves green to grey-green; branchlets and leaves with spreading ± long hairs; flower heads yellow to bright yellow."	"Acacia leucoclada"
406	"New growth yellow to golden to rust-coloured; mature leaves light to dark green; branchlets and leaves with short appressed yellow to whitish hairs; flower heads pale yellow to cream-coloured."	"Acacia deanei"
407	"New growth yellow to golden to rust-coloured; branchlets and leaves ± densely hairy with short appressed yellow to whitish hairs; flower heads pale yellow to cream-coloured."	"Acacia deanei"
407	"New growth green; branchlets and leaves glabrous, or sparsely to densely hairy with spreading or appressed white to grey hairs, but hairs not yellowish; flower heads bright yellow to pale yellow."	408
408	"Flower heads bright yellow; pinnules 4–10 mm long and 0.4–0.6 mm wide; petioles with 1–5 prominent glands; pods 6–17 mm wide, pruinose."	"Acacia filicifolia"
408	"Flower heads pale to bright yellow; pinnules 2–7 mm long and 0.5–1 mm wide; petioles with 1 to several small glands; pods 3.5–9 mm wide, not pruinose or only slightly so."	409
409	"Heads with 14–20 flowers, pale yellow; buds divergent in heads; branchlets densely hairy with appressed or spreading greyish white hairs; bark silvery or blackish grey."	"Acacia parvipinnula"
409	"Heads with 25–50 flowers, pale to bright yellow; buds compact in heads; branchlets glabrous or with short appressed hairs; bark greenish black to dark brown."	"Acacia parramattensis"
410	"Pinnules >1 mm wide, 1 or 2 secondary veins often visible; jugary glands present or absent."	411
410	"Pinnules <1 mm wide, mostly 1-veined; jugary glands regularly present at base of all pinnae pairs or rarely irregularly present or absent (A. parvipinnula)."	415
411	"Heads with 7–10 flowers; mature plants usually with some phyllodes; pinnules 2.5–6 mm long and 1.5–2 mm wide; pods 3.5–6 mm wide; jugary glands absent."	"Acacia nana"
411	"Heads with 15–50 flowers; phyllodes not present; pinnules 6–34 mm long, or if <6 mm then pinnules 0.4–1.3 mm wide; pods usually 6–13 mm wide; jugary glands absent or irregularly present."	412
412	"Flower heads pale yellow to cream-coloured; pinnae usually with 7–45 pairs pinnules."	413
412	"Flower heads bright yellow; pinnae usually with 4–14 pairs of pinnules."	414
413	"Heads with 27–50 flowers; pinnules glabrous or sparsely ciliate, 6–23 mm long and 1–5 mm wide; interjugary glands absent; Lane Cove R. To Maitland (NC, CC, ?CWS)."	"Acacia schinoides"
413	"Heads with 15–30 flowers; pinnules sparsely to moderately appressed-hairy, 1.5–5 mm long and 0.5–1.3 mm wide; interjugary glands absent or 1–3 sometimes present; widespread, chiefly on the Slopes (NWS, CWS, SWS, NWP, SWP)."	"Acacia deanei"
414	"Pinnules 3–13 mm long; petioles 0.3–1.5 cm long; jugary glands usually not present at base of all pinnae pairs; pods usually 4–8 mm wide, often twisted and constricted between seeds; north from Sandy Hollow (NWS, CWS, NWP)."	"Acacia polybotrya"
414	"Pinnules 10–34 mm long; petioles 1.3–4 cm long; jugary glands present at base of all pinnae pairs; pods 7–11 mm wide, not twisted, ± flat; confined to Bega district (SC)."	"Acacia blayana"
415	"Ridge on the underside of petioles continuous with the branchlets and forming wing-like ridges on branchlets."	"Acacia decurrens"
415	"Petioles not continuous with branchlets; branchlets without ridges or ridges not wing-like."	416
416	"Pinnules widely spaced, 4–9 mm long and 0.25–0.4 mm wide; confined to the Goulburn R. N.P. (CWS)."	"Acacia dangarensis"
416	"Pinnules otherwise; more widespread species."	417
417	"Leaves greyish green to silvery."	418
417	"Leaves light to dark green."	419
418	"Young leaves whitish yellow to golden-yellow; glands ± orbicular; pods glabrous, pruinose."	"Acacia dealbata"
418	"Young leaves silver grey or rusty; glands ± hemispherical; pods densely silvery grey to rusty-hairy."	"Acacia mollifolia"
419	"Branchlets and leaf axes with greyish long and spreading or tuberculate-based hairs."	"Acacia irrorata"
419	"Branchlets and leaf axes ± glabrous or with appressed hairs, but hairs neither long and spreading nor tuberculate-based."	420
420	"Stems blue-glaucous or blue-brown or blue-black; petiole with 1-several glands; 1–3 interjugary glands usually present on rachis between each pair of pinnae or sometimes absent; new growth white or cream-coloured to dark yellow."	"Acacia parvipinnula"
420	"Stems brown or blackish or green or grey-brown, not glaucous; petiole with 1 gland; 1–3 interjugary glands usually irregularly present on rachis between each pair of pinnae, but not present on all leaves; new growth yellow or greenish yellow."	421
421	"Heads with 20–50 flowers; pinnules glabrous except for appressed-ciliate margins; leaves usually with 8 or more pairs of pinnae; chiefly east and south from the CT (mainly in the Sydney Basin)."	"Acacia parramattensis"
421	"Heads with 15–30 flowers; pinnules densely to sparsely hairy, or ± glabrous; leaves usually with 8 or fewer pairs of pinnae; mostly north, south and west from the CT."	"Acacia deanei"