Flora of North America species comparison

1–5+, decumbent to erect, branched, herbaceous, often striate, leafy.

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

irregularly pinnate;

stipules glandlike, conic; petiolate or sessile;

rachis 2–3.5(–5.5) mm, not flattened;

leaflets 7–9(–12), blades usually elliptic to obovate, sometimes ovate, apex acute to obtuse, surfaces sparsely to densely puberulent or villosulous to strigillose.

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.

3–9(–11)-flowered.

3–10-flowered.

ascending or spreading, 10–80 mm, longer than leaves;

bract 1(–3)-foliolate, distal.

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

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

12–25 mm;

calyx (4.5–)5.5–10 mm, tube villosulous, lobes subulate;

corolla greenish white, white or yellow, fading to rose or reddish, claws shorter than calyx tube, banner ascending 45–90°, wings longer than banner and keel;

style nearly straight or basally 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, exserted, brown, linear-oblong, straight, turgid, sometimes slightly constricted, incompletely septate, 25–42(–70) × 2–3 mm, leathery, apex short hook-beaked, dehiscent, smooth, margins smooth, thickened, glabrate.

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.

5–9, olive to reddish brown, mottled, broadly ovoid, smooth.

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