Flora of North America species comparison

1(–5), decumbent to erect, apically or basally coarse-branched, herbaceous, leafy.

1–10+, procumbent to ascending, much branched, stiff, sometimes ± woody, leafy.

subpinnate, pinnate, or palmate;

stipules glandlike or absent; petiolate;

rachis 5–12 mm, flattened;

leaflets 2–4, often 1 or 2 on one side and 2 terminal, blades elliptic to obovate (lateral sometimes asymmetric), margins denticulate or entire, apex acute to obtuse, surfaces hirsute.

subpalmate;

stipules glandlike;

subsessile to short-petiolate;

rachis 1–4 mm, flattened;

leaflets usually 3, blades obovate to oblanceolate, apex usually acute, sometimes obtuse to emarginate, surfaces canescent to strigose.

1 or 2-flowered.

1–3(–5)-flowered.

± sessile;

bract absent.

ascending, 0–3 mm, shorter than leaves;

bract absent.

5–8 mm;

calyx 3–5 mm, tube hirsute or glabrous, lobes subulate, ± denticulate;

corolla cream-white to pale yellow, banner purple-tinged, keel tip yellowish, claws shorter to slightly longer than calyx tube, banner ascending, wings ± equaling keel, with deep, triangular auricle;

style curved, glabrous.

6–12 mm;

calyx 2–6 mm, tube ± densely strigose, lobes triangular or subulate;

corolla yellow or with red, claws scarcely to much longer than calyx tube, banner implicate-ascending, wings longer than banner and keel;

style curved, glabrous.

persistent, solitary or paired, exserted, erect or spreading, tawny, straight, compressed, slightly constricted, not septate, widely oblong, 8–20 × 3 mm, leathery, apex abruptly downward angled and curved, dehiscent, smooth, margins often undulate-verrucose, strigose or glabrous.

persistent, exserted, reflexed, green to pale reddish brown, straight to ± curved (initially), turgid, not or slightly constricted, not septate, linear-oblong, 10–16 × 1.5–2 mm, leathery, apex tapering, short-beaked, indehiscent, transverse-ridged, margins slightly keeled, smooth, glabrate to ± densely strigillose.

(2 or)3(or 4), gray, faintly mottled, asymmetrically ± angular-obovoid, flattened, smooth.

2 or 3+, dull yellowish brown, not mottled, elongate-oblong, smooth.

= 12.