Flora of North America species comparison

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

1–20+, procumbent to ± ascending, branched, flexuous-wiry or thick, ± 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.

irregularly pinnate to subpalmate, distal mostly 3-foliolate;

stipules glandlike;

subsessile to short-petiolate;

rachis 1–8 mm, ± flattened;

leaflets 3–5, blades obovate to elliptic, apex obtuse, surfaces glabrous or glabrate.

1 or 2-flowered.

3–10-flowered.

± sessile;

bract absent.

ascending, (1–)2–12(–25) mm, longer than leaves;

bract absent or 1- or 2-foliolate, usually subtending umbel.

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.

8–10 mm;

calyx 3.5–6 mm, tube sparsely strigillose to glabrate, lobes subulate;

corolla white to pinkish (banner) or yellow (wings cream), banner often red-striate or red-backed, keel reddish or purplish, claws shorter than calyx tube, banner reflexed to 90°, wings slightly longer than keel;

style upcurved, sparsely strigillose.

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, mostly included, divergent or ascending, brown, arched, turgid, not or slightly constricted, not septate, linear-oblong, 7–10 × 1–2 mm, leathery, apex tapering to exserted, slender, curved or straight beak, indehiscent, smooth, margins thickened, smooth, glabrate, beak strigillose.

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

1 or 2, olive brown, mottled, subcylindric, smooth.

= 12.