Flora of North America species comparison

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

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

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.

3–9(–11)-flowered.

(1 or)2–7-flowered.

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

bract 1(–3)-foliolate, distal.

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

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

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.

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, 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.

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.

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

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