Flora of North America species comparison

1–10+, erect to procumbent, branched proximally, herbaceous, leafy.

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

pinnate;

stipules glandlike;

subsessile to short-petiolate;

rachis 0.5–3(–4) mm, not flattened;

leaflets (1–)3(–5), blades obovate, ovate, or elliptic to lanceolate, margins denticulate or entire, apex acute, surfaces sparsely appressed-hairy.

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.

1(or 2)-flowered.

3–9(–11)-flowered.

in distal axils, ascending, 3–25 mm, longer than leaves;

bract unifoliolate, distal.

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

bract 1(–3)-foliolate, distal.

(4–)5–9 mm;

calyx (2.5–)3–6.5 mm, tube pilose, lobes linear-lanceolate, accrescent;

corolla whitish or cream, turning pink or salmon, banner rose-striate, keel tip yellow, claws shorter than calyx tube, banner implicate-ascending to erect, wings ± equaling keel;

style abruptly angled upward 45°, glabrous.

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.

persistent, exserted, spreading or pendent, brown, straight or ± curved, compressed, slightly constricted, not septate, linear-oblong to narrowly oblong, (15–)20–30(–40) × (1.5–)2–2.5 mm, thinly leathery, apex abruptly downward angled and curved, dehiscent, smooth, margins smooth, thickened, 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.

(3–)5–8, olive to light brown, often black-mottled, oblong, smooth.

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