1	"Anthers unequal, one very much longer than the other"	2
1	"Anthers ±the same size"	10
2	"Leaves imparipinnately 3–17-foliolate"	"Labichea cassioides"
2	"Leaves unifoliolate or digitately 3–9-foliolate"	3
3	"Leaves unifoliolate or consistently 3-foliolate"	4
3	"Leaves digitately 5–9-foliolate, occasional 3-foliolate leaves accompanied by leaves with 5–9 leaflets"	7
4	"Leaves unifoliolate"	"Labichea lanceolata"
4	"Leaves 3-foliolate"	5
5	"Central leaflet of each leaf to 2.5 cm long, longer than the lateral leaflets but not disproportionately so"	"Labichea deserticola"
5	"Central leaflet of each leaf usually more than 3 cm long and disproportionately longer than the lateral leaflets"	6
6	"Lateral leaflets elliptic or elliptic-oblong; leaves sessile or almost so"	"Labichea lanceolata"
6	"Lateral leaflets usually ±very broadly obtrullate or reniform, rarely narrowly elliptic; leaves distinctly petiolate"	"Labichea obtrullata"
7	"Sepals usually 4"	"Labichea lanceolata"
7	"Sepals usually 5"	8
8	"Leaflets compressed and ±subterete or linear- to narrowly elliptic-oblong, to 2 mm wide; margins tightly recurved to conceal the lower surface except the midrib or portion of the midrib, or sometimes portion of the lower surface visible also"	"Labichea teretifolia"
8	"Leaflets not as above"	9
9	"Leaflets rigid, folded lengthwise and deeply channelled above or U-shaped in section, sometimes almost conduplicate, 1–3.5 mm wide"	"Labichea eremaea"
9	"Leaflets not as above"	"Labichea lanceolata"
10	"Leaves digitately or subdigitately 3–7-foliolate"	"Labichea stellata"
10	"Leaves unifoliolate"	11
11	"Petals dissimilar, wing petals 4-5 × 3-4 mm, standard 2.5-3 × 1.8-2 mm, keel 2.5-2.8 × 0.7-1 mm; ovary with a moderate to dense cover of uncinate hairs"	"Labichea rossii"
11	"Petals similar, 6-12 x 5-11.5 mm; ovary clothed with short erect uncinate hairs and longer scattered appressed hairs"	"Labichea punctata"