1	"All leaves with a single leaflet, or leaves absent or reduced to scales or spines"	2
1	"All leaves compound with 2 or more leaflets (rarely some leaves with a single leaflet)"	37
2	"Leaves simple or 1-foliolate"	3
2	"Leaves absent or reduced to scales, spines or phyllodes"	31
3	"Leaves simple (not articulated at the petiole-lamina junction)"	4
3	"Leaves 1-foliolate (articulated at petiole-lamina junction)"	27
4	"Stipules present, fused behind the axillary bud (sometimes only at base); bracteoles conspicuous, persistent, attached to, or immediately below, calyx"	Pultenaea
4	"Stipules free or absent; bracteoles absent, or if present inconspicuous and/or deciduous, attached below calyx"	5
5	"All 10 stamens free or fused only at the very base"	6
5	"All 10 stamens variously fused"	19
6	"Upper 2 calyx teeth fused into a broad notched lip, lower 3 small and narrow; bracteoles prominent, obovate, caducous; pods more or less globose"	Sphaerolobium
6	"Combination of features not as above"	7
7	"Ovules more than 2; pods ovoid or obloid; seeds usually more than 2"	8
7	"Ovules 2; pods variously shaped; seeds 1 or 2"	12
8	"Leaves mostly alternate; keel shorter than wings"	Chorizema
8	"Leaves mostly opposite, whorled or scattered; keel equal to or longer than wing"	9
9	"Pods divided longitudinally into 2 cells by a false septum projecting from the lower suture; montane shrubs mostly in Eastern Highlands"	Mirbelia
9	"Pods not as above"	10
10	"Stem-hairs peltate; calyx campanulate; upper 2 calyx teeth valvate, lower 3 teeth successively overlapping upper teeth, teeth recurved at anthesis; seeds not or only palely mottled"	Podolobium
10	"Stem-hairs simple; calyx not as above; calyx teeth all valvate, not recurved at anthesis; seeds darkly mottled"	11
11	"Bracts simple; stipules vestigial or absent; inflorescence unbranched"	Oxylobium
11	"Bracts trilobed; stipules conspicuous; inflorescence branched"	"Callistachys {Callistachys lanceolata}"
12	"Pods more or less triangular, glabrous; barren bracts present on peduncle; bracteoles absent"	Daviesia
12	"Combination of features not as above"	13
13	"Pods divided longitudinally into 2 cells by a false septum projecting from the lower suture; rare plants of far East Gippsland"	Mirbelia
13	"Pods not as above"	14
14	"Leaves with recurved or revolute margins; seeds exarillate"	15
14	"Leaves flat with flat to involute margins or terete to trigonous and grooved above; seeds arillate"	16
15	"Bracteoles absent; ovary shortly stipitate"	Aotus
15	"Bracteoles present; ovary sessile"	Phyllota
16	"Leaves opposite and decussate, or in whorls of 3 or 4  (rarely opposite in Gastrolobium bilobum)"	17
16	"Leaves alternate, scattered or crowded"	18
17	"Leaves opposite and decussate; stipules absent or minute"	Eutaxia
17	"Leaves in whorls or 3 or 4 (rarely opposite); stipules 2–6 mm long"	"Gastrolobium bilobum"
18	"Standard slightly longer than broad; inflorescence a terminal head surrounded by an involucre of leaves"	Almaleea
18	"Standard much broader than long; inflorescence racemose, umbellate or capitate, not surrounded by an involucre of leaves"	Dillwynia
19	"All 10 stamens fused in a tube, closed or open on upper side"	20
19	"Upper stamen partially free, other 9 joined in a sheath"	25
20	"Stamens fused in a closed tube"	21
20	"Stamens fused in a sheath open along upper side"	22
21	"Calyx 2-lipped; anthers not bearded"	Genista
21	"Calyx usually 1-lipped, with small, equal teeth; anthers bearded"	"Spartium {Spartium junceum}"
22	"Leaves distichous; anthers with a perceptible connective, all dorsifixed, uniform"	23
22	"Leaves spirally arranged; anthers with an inconspicuous connective, alternately basifixed and dorsifixed, the latter often shorter"	24
23	"Upper calyx teeth not greatly enlarged, less than 6 times as long as lower teeth; pods not winged above, valves remaining flattish upon dehiscing; leaves alternate or opposite"	Bossiaea
23	"Upper calyx teeth greatly enlarged, more than 6 times as long as lower teeth; pods with a conspicuous wing above, valves rolling back upon dehiscing; leaves usually opposite"	Platylobium
24	"Corolla blue or purple, rarely white; pods not or scarcely longer than broad"	Hovea
24	"Corolla mostly yellow, often with dark red markings; pods at least one and a half times longer than broad"	Templetonia
25	"Plants more or less prostrate, herbaceous; pods twisted and somewhat spiny"	"Scorpiurus {Scorpiurus muricatus}"
25	"Plants upright shrubs; pods obloid or elongate, not spiny"	26
26	"Branches spinescent; inflorescences 3–8-flowered; pods elongate, indehiscent; seeds exarillate"	"Alhagi {Alhagi maurorum}"
26	"Branches not spinescent; flowers solitary in leaf axils; pods obloid, dehiscent; seeds arillate"	"Podalyria {Podalyria sericea}"
27	"Stipules conspicuous, adnate to petiole"	Ononis
27	"Stipules free or absent"	28
28	"All 10 stamens fused in a sheath, split (at least basally) along upper side"	29
28	"All or most stamens fused but not as above"	30
29	"Upper calyx teeth not greatly enlarged, less than 6 times as long as lower teeth; pods not winged above, valves remaining flattish upon dehiscing; leaves alternate or opposite"	Bossiaea
29	"Upper calyx teeth greatly enlarged, more than 6 times as long as lower teeth; pods with a conspicuous wing above, valves rolling back upon dehiscing; leaves usually opposite"	Platylobium
30	"All 10 stamens joined in a closed tube; erect shrubs"	Cytisus
30	"Upper stamen free, other 9 joined in an open sheath; climbing or prostrate subshrubs"	"Hardenbergia {Hardenbergia violacea}"
31	"Stamens all free"	32
31	"Stamens variously fused"	34
32	"Flowers in very long racemes and panicles; calyx teeth subequal, shorter than calyx tube; pods obovoid, thin-walled, indehiscent"	"Viminaria {Viminaria juncea}"
32	"Flowers not arranged as above; calyx teeth unequal, upper 2 united higher up than lower 3, shorter or longer than calyx tube; pods oblique, globose or triangular, thick-walled, dehiscent"	33
33	"Flowers in axillary racemes, umbels or reduced to 1 flower; barren bracts present on peduncle; pods more or less triangular"	Daviesia
33	"Flowers in terminal or axillary racemes or clusters; barren bracts not present on peduncle; pods more or less globose"	Sphaerolobium
34	"All 10 stamens fused in a tube"	"Ulex {Ulex europaeus}"
34	"All 10 stamens fused in a sheath open on upper side or the upper most stamen free"	35
35	"Annual herb with grass-like phyllodes"	Lathyrus
35	"Shrubs or subshrubs; leaves reduced to scales"	36
36	"Branches broadly flattened and winged, apex blunt; pod flat, more than 2 cm long; anthers with a perceptible connective, all dorsifixed, uniform"	Bossiaea
36	"Branches terete or slightly flattened with a sharply pointed apex; pod more or less swollen, less than 2 cm long; anthers with an inconspicuous connective, alternately basifixed and dorsifixed, the latter often shorter"	Templetonia
37	"Leaflets odd-numbered, rachis terminated by a leaflet"	38
37	"Leaflets even-numbered, rachis terminated by a simple or pinnate tendril or bristle"	77
38	"Leaflets usually 3"	39
38	"Leaflets usually 5 or more"	59
39	"Leaves palmately trifoliolate, the 3 petiolules more or less equal"	40
39	"Leaves pinnately trifoliolate, the central petiolule somewhat longer than the laterals"	47
40	"All 10 stamens free; leaves more or less sessile; pods more or less globose"	Gompholobium
40	"All 10 stamens fused in a closed tube or upper one wholly or partly free"	41
41	"Leaflets gland-dotted, at least on lower surface"	Cullen
41	"Leaflets not gland-dotted"	42
42	"Plants low-growing and herbaceous, sometimes woody at the base"	43
42	"Plants upright shrubs or small trees"	44
43	"Plants twining or trailing, usually woody at the base; flowers usually blue or purplish; inflorescences racemose"	Glycine
43	"Plants prostrate, erect or ascending; flowers usually white, yellow, pink or reddish; inflorescences head-like, spicate or umbellate"	Trifolium
44	"Calyx circumscissile, teeth breaking away as flower opens leaving a cup-like remnant; stems spinescent"	"Calicotome {Calicotome spinosa}"
44	"Calyx and stems not as above"	45
45	"Keel oblong, straight along lower surface; style curved abruptly near apex"	Genista
45	"Keel oblong-falcate, curved along lower surface; style curved throughout"	46
46	"Flowers white or creamish; calyx tubular, c. 10 mm long, 2-lipped, lips about as long as tube; stems terete with obscure ridges"	Chamaecytisus
46	"Flowers white or golden-yellow; calyx campanulate, 2–6 mm long, 2-lipped, lips often shorter than tube; stems angular or ribbed"	Cytisus
47	"Stipellae clearly present at base of each leaflet"	48
47	"Stipellae minute or absent"	51
48	"Style bearded more than halfway along upper margin"	"Dipogon {Dipogon lignosus}"
48	"Style glabrous or bearded less than halfway along margin"	49
49	"Prostrate, erect or rarely twining herbs; pod transversely jointed, separating into 1-seeded articles"	Desmodium
49	"Trailing or twining herbs; pods not as above"	50
50	"Corolla up to c. 10 mm long, mostly blue or purplish; bracteoles present at the base of each pedicel"	Glycine
50	"Corolla more than 10 mm long, mostly red; bracteoles absent"	Kennedia
51	"All 10 stamens fused in a sheath split along upper side; pods dehiscent"	Goodia
51	"Stamens usually not as above, but if so pods indehiscent"	52
52	"Margins of leaflets toothed or minutely crenate"	53
52	"Margins of leaflets entire"	58
53	"Pods more or less included in the calyx"	54
53	"Pods greatly exserted from the calyx"	56
54	"Pods usually thick-walled, dehiscent; inflorescences 1- or 2-flowered"	Ononis
54	"Pods black and adhering to the seed, or membranous, indehiscent; inflorescences usually many-flowered"	55
55	"Pods black and adhering to the seed when mature; leaflets gland-dotted, at least on lower surface (sometimes obscured by hairs)"	Cullen
55	"Pods usually membranous; leaflets not gland-dotted"	Trifolium
56	"Pods spirally coiled, rarely reniform or falcate, often spiny or tuberculate"	Medicago
56	"Pods not as above"	57
57	"Pods globose or ovoid, straight, indehiscent; flowers in elongated racemes"	Melilotus
57	"Pods long, linear, curved, tardily dehiscent; flowers in axillary clusters"	"Trigonella {Trigonella suavissima}"
58	"Inflorescences of few-flowered axillary clusters; pods included in calyx"	"Lespedeza {Lespedeza juncea subsp. sericea}"
58	"Inflorescences racemose; pods exserted from calyx"	Swainsona
59	"All 10 stamens free"	Gompholobium
59	"All 10 stamens variously fused by their filaments"	60
60	"Anthers tipped by a small raised gland"	Indigofera
60	"Anthers not as above"	61
61	"Combination of features not as above"	62
61	"Plants herbaceous; leaves mostly 5-foliolate, upper 3 palmate at apex of rachis, lower 2 at base of rachis and often resembling stipules; stipules minute"	76
62	"All 10 stamens fused in a sheath open along upper side; pods dehiscent"	63
62	"Stamens not as above"	64
63	"Leaves imparipinnate; calyx not 2-lipped; pods linear-cylindric"	"Galega {Galega officinalis}"
63	"Leaves usually palmately 5–15-foliolate; calyx deeply 2-lipped; pods oblong, compressed"	Lupinus
64	"Stipules becoming enlarged and spinose; deciduous trees"	"Robinia {Robinia pseudoacacia}"
64	"Stipules not becoming spinose; herbs and shrubs"	65
65	"Styles bearded"	66
65	"Styles glabrous or pubescent near base only"	67
66	"Standard shorter than keel; flowers more than 3 cm long; medium shrubs"	"Lessertia {Lessertia frutescens}"
66	"Standard equal to or longer than keel; flowers mostly less than 3 cm long; herbs or subshrubs"	Swainsona
67	"Leaves mostly palmately 5-foliolate"	Cullen
67	"Leaves imparipinnate"	68
68	"Leaflets more or less terete"	"Psoralea {Psoralea pinnata}"
68	"Leaflets flat"	69
69	"Terminal leaflet much larger than laterals; pods included in the calyx"	"Anthyllis {Anthyllis vulneraria}"
69	"Terminal leaflet not larger than laterals; pods exserted from the calyx"	70
70	"Pods with 1-several seeds, not transversely jointed"	71
70	"Mature pods transversely jointed, separating into 1-seeded articles"	74
71	"Leaflet margins toothed; pods inflated, mostly 2-seeded"	Cicer
71	"Leaflet margins entire; pods not inflated, 1–6-seeded"	72
72	"Pods discoid, 1-seeded, reticulate with bristly margins; corolla pink with red or purple veins"	Onobrychis
72	"Pods ovoid, cylindric or linear-oblong, 1–6-seeded, smooth or covered with bristles; corolla white, yellow, blue or purplish"	73
73	"Pods more or less cylindric, c. 6-seeded, smooth, curved; corolla pale yellow"	Astragalus
73	"Pods ovoid and bristly or linear-oblong and smooth, 1–6-seeded; corolla white, blue or purplish"	Glycyrrhiza
74	"Keel acute or beaked; pods linear, markedly 4-angled"	"Securigera {Securigera varia}"
74	"Keel obtuse; pods terete or compressed, not 4-angled"	75
75	"Inflorescences of erect many-flowered racemes; corolla more than 10 mm long, reddish; pods covered with sharp rough projections"	Hedysarum
75	"Inflorescences of few-flowered axillary clusters or umbels; corolla less than 10 mm long, flowers white, yellow or pink; pods reticulate"	Ornithopus
76	"Inflorescence a many-flowered head; standard white or pink; keel dark red, not beaked; leaflets dimorphic"	Dorycnium
76	"Plants lacking the above combination of characters; keel always beaked (sometimes obscurely so)"	Lotus
77	"Stipules similar in appearance and size to leaflets (or larger)"	Pisum
77	"Stipules smaller and narrower than leaflets"	78
78	"Leaflets 2"	Lathyrus
78	"Leaflets 4-many"	79
79	"Climbing or procumbent to erect herbs, usually less than 1 m high; leaf rachis terminating in a tendril"	Vicia
79	"Erect herbs or shrubs to 3 m high; leaf rachis terminating in a bristle"	"Sesbania {Sesbania cannabina}"