Flora of North America species comparison

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

1–20+, procumbent or decumbent to diffusely ascending, branched, herbaceous, slender, 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.

palmate or irregularly subpinnate;

stipules glandlike;

subsessile to short-petiolate;

rachis 1–4 mm, ± flattened;

leaflets 3–5, blades obovate to oblanceolate, apex usually obtuse, sometimes acute, surfaces sericeous to canescent.

1 or 2-flowered.

1–3(–5)-flowered.

± sessile;

bract absent.

ascending or spreading, (2–)10–20 mm, shorter to longer than leaves;

bract absent (reduced to stipules) or unifoliolate, distal.

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.

5–12 mm;

calyx 4–7 mm, tube villous, lobes subulate;

corolla yellow, turning orange-red, claws ± equaling calyx tube, banner ascending to 45°, wings unequal, longer than keel;

style slightly curved or straight, glabrous or finely puberulent.

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, divergent, brown, straight or curved at tip, turgid, slightly constricted, imperfectly septate, linear-oblong to oblong, (10–)18–25 × 1.5–2 mm, leathery, apex short-beaked, dehiscent, smooth, margins smooth, strigillose to glabrate.

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

2–5+, olive brown, mottled, roundish-oblong to angled, smooth, 2-veined.

= 12.