1	"Flowers yellow, orange, orange-red or red-brown"	2
1	"Flowers pink, purple, blue or red"	36
2	"Plants twining (WA—N of New Norcia to Augusta and E to Cape Arid)"	"Gompholobium polymorphum"
2	"Plants not twining"	3
3	"Flowers yellow to yellow-orange on front of standard"	4
3	"Flowers orange, orange-red or red-brown on front of standard"	29
4	"Plants viscid"	5
4	"Plants not viscid"	10
5	"Leaflets flat, with or without slightly recurved margins"	6
5	"Leaflets with strongly recurved to revolute margins"	8
6	"Leaflet apex mostly retuse, rarely rounded (WA—Maya to Corrigin)"	"Gompholobium obcordatum"
6	"Leaflet apex acute or obtuse"	7
7	"Standard lamina <8 mm wide (WA—Kalbarri to Tarin Rock, Mount Heywood, Great Victoria Desert)"	"Gompholobium gompholobioides"
7	"Standard lamina >14 mm wide (WA—North Bannister area to Nornalup and E to Cape Riche)"	"Gompholobium burtonioides"
8	"Leaflet apex prominently recurved with a 0.25–0.4 mm mucro (WA—E of Hyden, Fitzgerald River National Park to Israelite Bay)"	"Gompholobium baxteri"
8	"Leaflet apex straight or slightly recurved with a 0.05–0.2 mm mucro"	9
9	"Buds glabrous (WA—Southern Cross to Cape Riche, W to Nyabing and E to Duke of Orleans Bay)"	"Gompholobium viscidulum"
9	"Buds with sparse, spreading, wavy hairs ~0.4 mm long (WA—Watheroo to Kalbarri)."	"Gompholobium glutinosum"
10	"Shrub glabrous erect; leaves imparipinnate with 5–17 leaflets; subtending leaves usually longer than the 1-flowered inflorescence (north-eastern Qld between  Townsville and Cape York, and New Guinea)"	"Gompholobium nitidum"
10	"Shrubs not with the following character combination: glabrous, erect; leaves imparipinnate with 5–17 leaflets; subtending leaves usually longer than the1-flowered inflorescence"	11
11	"Subtending leaves longer than inflorescence (WA—Perth to Augusta and E to the King River)"	"Gompholobium capitatum"
11	"Subtending leaves not longer than inflorescence"	12
12	"Apex of majority of leaflets on plant abruptly and broadly flared at apex (WA—Gairdner Range)"	"Gompholobium gairdnerium"
12	"Apex of leaflets acute or obtuse but not broadly flared"	13
13	"Stipules stiff and strongly recurved (NSW—Singleton to Batemans Bay; Vic.—Genoa River area)"	"Gompholobium inconspicuum"
13	"Stipules erect or absent, or if recurved then soft textured"	14
14	"Buds costate (ribbed at lobe margins)"	15
14	"Buds ecostate"	17
15	"Leaves trifoliolate; calyx entirely glabrous (NSW—Greta N of Sydney to SW of Braidwood, W to Murrumbateman)"	"Gompholobium minus"
15	"Leaves pinnate with 7–37 leaflets; calyx hairy, at least on the margins of the lobes"	16
16	"Branchlets with hairs ~1.1 mm long; stipules recurved; leaves with hairs ~0.4 mm long, leaflets crowded, overlapping, leaflet apex obtuse; peduncle 6–14 mm long; bracts 0.4–0.8 mm wide; buds 7.5–8.1 mm long, marginal hairs on keel absent or ~0.02 mm long; calyx covered in dense hairs (WA, NT)"	"Gompholobium polyzygum"
16	"Branchlets glabrous or with hairs ~0.8 mm long; stipules erect or scarcely recurved; leaf hairs absent or ~0.8 mm long, leaflets not or only scarcely overlapping, leaflet apex acute or obtuse; peduncle 2–7 mm long; bracts 0.2–0.4 mm wide; buds 6.5–7.3 mm long, marginal hairs on keel 0.05–0.2 mm; calyx hairs often confined to calyx margins (WA—Pilbara)"	"Gompholobium karijini"
17	"Adaxial margin of keel with dense hairs 0.4–0.5 mm long"	18
17	"Adaxial margin of keel glabrous or with sparse to dense hairs 0.01–0.3 mm long, or hairs only at apex of keel"	19
18	"Standard lamina >22 mm wide (near coastal areas of south-eastern Australia from E of Melbourne to N of Brisbane)"	"Gompholobium latifolium"
18	"Standard lamina <16 mm wide (eastern Australia from Stanthorpe to Tasmania, W to Grampian Ranges, Portland)"	"Gompholobium huegelii"
19	"Petioles 0.2–0.6 mm long"	20
19	"Petioles 0.6–4 mm long"	22
20	"Indumentum of straight hairs, pedicels <3.5 mm long (WA—Mingenew to Serpentine)"	"Gompholobium aristatum"
20	"Indumentum curly, pedicels >3.5 mm long"	21
21	"Leaflets stout, 0.8–1.1 mm wide (WA—Wongan Hills)"	"Gompholobium wonganense"
21	"Leaflets slender, 0.4–0.6 mm wide (WA—Calingiri to Stirling Ranges)"	"Gompholobium laxum"
22	"Leaves digitately trifoliolate"	23
22	"Leaves imparipinnate with 3–37 leaflets"	26
23	"Standard width >22 mm (NSW—Blue Mountains and Sydney area to Jervis Bay)"	"Gompholobium grandiflorum"
23	"Standard width <21 mm"	24
24	"Stipules present (WA—N of Geraldton to Augusta and E to Cape Arid)"	"Gompholobium marginatum"
24	"Stipules absent; Qld, NSW"	25
25	"Leaflet width 0.8–4.3 mm, margin recurved; branchlets smooth (coastal from Bundaberg in Qld to Sydney, NSW)"	"Gompholobium virgatum"
25	"Leaflet width 0.6–0.8 mm, margin revolute; branchlets tuberculate (inland Qld, NW Bundaberg to SW of Moruya, NSW)"	"Gompholobium aspalathoides"
26	"Ovules 2 (northern WA, NT—Buccaneer Archipelago to Seven Emu, E of Borroloola, Indonesia—Wetar Island)"	"Gompholobium subulatum"
26	"Ovules 8–20"	27
27	"Buds with dense, spreading, straight hairs ~0.6 mm long (WA—Zuytdorp National Park to Albany, W to Margaret River area and E to Esperance   area)"	"Gompholobium tomentosum"
27	"Buds glabrous"	28
28	"Branchlets smooth; leaves obviously pinnate with usually >15 leaflets; peduncle >3 mm long, pedicels >6 mm long (Qld, NSW; Mareeba toMoruya)"	"Gompholobium pinnatum"
28	"Branchlets prominently tuberculate; leaves appearing digitate with 3–7 leaflets; peduncle <3 mm long, pedicels <6 mm long (NSW, Vic., near coastal from Coffs Harbour to East Gippsland)"	"Gompholobium glabratum"
29	"Leaves simple (WA—Darling Range near Perth to Augusta and E to Cheyne Beach)"	"Gompholobium ovatum"
29	"Leaves compound"	30
30	"Leaves imparipinnate with 5–37 leaflets"	31
30	"Leaves digitately trifoliolate"	34
31	"Leaflets hairy"	32
31	"Leaflets glabrous"	33
32	"Ovary glabrous (WA—Mount Lesueur to Margaret River area and E to Stirling Ranges)"	"Gompholobium preissii"
32	"Ovary densely hairy (eremean WA, NT)"	"Gompholobium polyzygum"
33	"Standard and wings yellow or orange (northern WA, NT—Buccaneer Archipelago to Seven Emu, E of Borroloola, Indonesia—Wetar Island)"	"Gompholobium subulatum"
33	"Standard and wings orange-red (inland Qld and NSW from Burra Range to Mogriguy near Dubbo)"	"Gompholobium foliolosum"
34	"Keel incurved at the apex, conspicuously longer than wings (WA)"	"Gompholobium hendersonii"
34	"Keel straight, about as long as wings (south-eastern Australia)"	35
35	"Stipules present; petiole absent; keel 8–16 mm long (south coastal SA and Vic., and Flinders Island, Tas.)"	"Gompholobium ecostatum"
35	"Stipules absent; petiole 0.7–2 mm long; keel 6.5–7.5 mm long (Qld–NSW border ranges and Blue Mountains)"	"Gompholobium uncinatum"
36	"Leaves simple (WA—Walkaway to Cape Arid)"	"Gompholobium confertum"
36	"Leaves compound"	37
37	"Leaflets >1.5 mm wide (WA—Greenough to Israelite Bay)"	"Gompholobium knightianum"
37	"Leaflets 0.2–1.5 mm wide"	38
38	"Flowers lateral along branchets"	39
38	"Flowers at apex of branchlets"	43
39	"Calyx densely hairy (WA—Whicher Range, Denmark to East Mount Barren)"	"Gompholobium villosum"
39	"Calyx glabrous"	40
40	"Standard claw <2.5 mm long"	41
40	"Standard claw >2.5 mm long"	42
41	"Stipules present; petiole absent; keel 8–16 mm long (south coastal SA and Vic., and Flinders Island, Tas.)"	"Gompholobium ecostatum"
41	"Stipules absent; petiole 0.7–2 mm long; keel 6.5–7.5 mm long (Qld–NSW border ranges and Blue Mountains)"	"Gompholobium uncinatum"
42	"Keel dark pink to red, shorter than or as long as wings; standard mauve to purple with an inconspicuous dull yellow or greenish centre (WA—Moore  River to Israelite Bay)"	"Gompholobium scabrum"
42	"Keel deep purple-red, markedly longer than wings; standard pink-orange to bright orange-red with a conspicuous yellow centre (WA—Burracoppin to Lake Grace)"	"Gompholobium hendersonii"
43	"Buds ecostate"	44
43	"Buds costate at least at base of lobe"	49
44	"Standard blue (WA—E of Perth to Margaret River and E to Cape Arid)"	"Gompholobium cyaninum"
44	"Standard pink, purple or red"	45
45	"Flowers solitary or in 2- or 3-flowered racemes"	46
45	"Racemes 4–25-flowered"	47
46	"Stipules present; petiole absent; keel 8–16 mm long (southern coastal SA and Vic., and Flinders Island, Tas.)"	"Gompholobium ecostatum"
46	"Stipules absent; petiole 0.7–2 mm long; keel 6.5–7.5 mm long (Qld–NSW border ranges and Blue Mountains)"	"Gompholobium uncinatum"
47	"Leaflets 3–5 (WA—Mullewa to Coolgardie)"	"Gompholobium cinereum"
47	"Leaflets 12–22"	48
48	"Leaflets smooth with pungent point; flowers pale pink (WA—Howatharra Hill to Wanneroo)"	"Gompholobium pungens"
48	"Leaflets tuberculate with an innocuous mucro; flowers deep purplish-pink (WA—Walpole to Fitzgerald River National Park)"	"Gompholobium venustum"
49	"Standard brick red (Qld–NSW border ranges and Blue Mountains)"	"Gompholobium uncinatum"
49	"Standard pink or mauve"	50
50	"Standard mauve to magenta pink, <12.5 mm wide (WA—Ajana to Bunbury, E to Dragon Rocks Nature Reserve)"	"Gompholobium shuttleworthii"
50	"Standard pale pink, >12.5 mm wide"	51
51	"Outer surface calyx hairs 0.8–1.5 mm long, adaxial calyx lobes 8.5–10 mm long (WA—Northampton to Bindoon)"	"Gompholobium muticum"
51	"Outer surface calyx hairs 0.3–0.7 mm long, adaxial calyx lobes 6–7 mm long (WA—Coorow to Coomberdale)"	"Gompholobium roseum"