Flora of North America species comparison

1–10+, decumbent to ascending or erect, branched sparsely, stiff, leafy, base without persistent leaves.

1–20, procumbent to ascending, branched basally, herbaceous, leafy.

palmate, homomorphic;

stipules ovate;

sessile;

rachis absent;

leaflets (2–)4–6, blades linear-oblanceolate to oblanceolate, apex acute to obtuse, surfaces villous to strigose.

irregularly pinnate;

stipules glandlike;

sessile or subsessile to short-petiolate;

rachis 8–20(–35) mm, flattened;

leaflets (3–)5–7, blades unequal, obovate to ± orbiculate, apex obtuse, surfaces glabrous or ± strigillose.

(1 or)2–5(or 6)-flowered.

1–5-flowered.

ascending to deflexed, curved to erect, (10–)20–50(–80) mm, longer than leaves;

bract 1–3-foliolate, subtending umbel.

erect then spreading or declined, 3–15 mm, shorter to longer than leaves, sometimes branched, slender;

bract absent or 1–3-foliolate, subtending umbel.

8–15 mm;

calyx 5–7.5 mm, tube villous, lobes subulate;

corolla yellow with red-backed banner, often suffused with red, turning orange, claws shorter than calyx tube, banner recurved ca. 45°, pandurate, wings longer than keel (nearly equaling banner);

style straight, glabrous.

2.5–8(–11) mm;

calyx 1.2–4.5 mm, tube strigose to villous, lobes lanceolate;

corolla bright yellow or orange-yellow, claws shorter than to equaling calyx tube, banner implicate-ascending, wings symmetric, equaling or shorter than keel;

style curved, glabrous.

persistent, exserted, spreading or deflexed, reddish to grayish brown, ± straight, turgid, not constricted, incompletely septate, linear-oblong, (14–)25–35 × 1.5–3.5 mm, leathery, apex short-beaked, dehiscent, smooth, lustrous, margins keeled, strigillose or glabrous.

persistent, exserted, ascending or spreading, tawny to brown, straight or curved, ± compressed, scarcely or distinctly constricted, not septate, narrowly oblong, 10–30 × 3–4 mm, leathery, apex short hook-beaked, dehiscent, margins smooth, thin, glabrous or sparsely strigillose.

(1–)3–6, olive green to dark brown, mottled, oblong, smooth.

5–9, brown to dark olive green, not mottled, oblong-ovoid, smooth.