Flora of North America species comparison

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

1–20+, ascending, branched basally, 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;

stipules glandlike;

subsessile;

rachis 3–8 mm, flattened;

leaflets 5–7, blades oblong, apex obtuse, surfaces tomentulose.

3–9(–11)-flowered.

1-flowered.

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

bract 1(–3)-foliolate, distal.

ascending, filiform, 10–20 mm, longer than leaves;

bract absent.

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.

4–5 mm;

calyx 2.5–3 mm, tube pubescence not observed, lobes subulate, shorter than tube;

corolla yellow turning red, claws ± equaling calyx tube, banner cuneate to short-clawed, wings equal to keel;

style thickening and shape not observed, puberulent becoming glabrate.

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, exserted, erect, brown, curved distally, compressed, oblong, leathery, dehiscent, smooth, margins smooth, strigillose.

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

olive green to dark brown, ± mottled, oblong, sculpture not observed.