Flora of North America species comparison

1–10+, erect or decumbent, branched, woody, leafy.

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

irregularly pinnate;

stipules glandlike; short-petiolate to petiolate;

rachis 3–10 mm, not flattened;

leaflets 3–5, blades narrowly obovate to elliptic or oblong, apex acute to obtuse, surfaces sparsely to densely strigose.

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.

(3–)7–12-flowered.

1(or 2)-flowered.

ascending, 2–10 mm, shorter than leaves;

bract absent or unifoliolate, subtending umbel.

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

bract unifoliolate, distal.

8–12 mm;

calyx 4–6 mm, tube sparsely strigose to glabrate, lobes short-subulate to deltate;

corolla yellow, claws ± longer than calyx tube, banner implicate-ascending to 90°, wings ± equaling keel;

style abruptly incurved 90°, glabrous.

(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.

persistent, exserted, divergent to declined, brown, straight or curved, turgid, slightly constricted, not septate, linear-oblong, 10–50 × 1–2 mm, leathery, apex tapering, long-beaked, indehiscent, ± veined, margins thickened, smooth, glabrate or sparsely strigose.

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.

1–4(–6), brown (paler veined), not mottled, cylindric, smooth.

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