Flora of North America species comparison

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

1–20+, procumbent or the central ascending, branched, 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.

pinnate to subpalmate;

stipules glandlike; short-petiolate;

rachis 2–5 mm, flattened;

leaflets 3–5, blades obovate to oblanceolate or broadly obovate to obcordate, apex usually obtuse to acute, sometimes mucronulate, or retuse to cordate, surfaces gray-puberulent.

(1 or)2–5(or 6)-flowered.

(1 or)2–7-flowered.

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

bract 1–3-foliolate, subtending umbel.

curved to erect, 25–75(–95) mm, longer than leaves;

bract absent or 1(–3)-foliolate, distal.

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.

12–20 mm;

calyx 3.5–5 mm, tube puberulent, lobes narrow lanceolate;

corolla yellow to cream, often suffused with red, claws shorter than calyx tube, banner ascending 45–90°, wings ± equaling to longer than keel;

style nearly straight, 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.

subpersistent, exserted, erect to ascending, tawny to brown, straight, turgid, not constricted, ± septate, oblong, 15–35(–40) × 3–7 mm, leathery, apex short-beaked, dehiscent, smooth, margins smooth, thickened, strigillose.

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

3–6, brown, ± mottled, oblong, ± rugose to smooth.