Flora of North America species comparison

prostrate or decumbent to ascending, densely villous-tomentose.

decumbent to weakly ascending;

silvery-strigulose.

5–14 cm;

stipules distinct, 3–6 mm, herbaceous becoming membranous;

leaflets (7–)15–21, blades oval-obovate, 6–17 mm, apex obtuse to subacute, surfaces villous-tomentose.

2–10(–12.5) cm;

stipules 1.8–3.5 mm, membranous or thinly herbaceous;

leaflets (3 or)5–11, blades rhombic-elliptic, obovate-cuneate, or suborbiculate, 3–18 mm, apex obtuse or shallowly retuse, surfaces silvery-strigulose, appearing frosted.

(10–)20–40-flowered, flowers spreading;

axis (1–)1.5–12 cm in fruit;

bracts 2–5 mm;

bracteoles 0.

loosely 3–16-flowered, flowers ascending to declined;

axis 0.8–7 cm in fruit;

bracts 1–2.2 mm;

bracteoles 0–2.

erect or incurved-ascending, 5–12 cm.

erect or divaricate and ascending, often humistrate in fruit, 1.5–7(–10) cm.

0.5–1 mm.

0.6–3 mm.

9–12 mm;

calyx broadly campanulate, 6.6–7.8 mm, silky-villous, tube 3.9–4.5 × 3.5–4.1 mm, lobes narrowly subulate, 2.7–3.5 mm, somewhat accrescent, covering most or all of mature legume;

corolla pale yellow, drying ochroleucous, pubescent abaxially;

banner recurved through 50°;

keel 7.1–8.2 mm, apex obtuse-deltate.

7–12.5 mm;

calyx 4–7.2 mm, strigulose, tube 2.5–4.4 mm, lobes subulate, 1.5–2.8 mm;

corolla pink-purple;

banner recurved through 45;

keel 6.8–10.7 mm, apex round.

spreading or somewhat declined, straight, obliquely ovoid, obscurely 3-sided compressed, 4.5–6 × 3 mm, stiffly papery, tomentulose, hairs 1+ mm; contracted basally into pseudostipe, 0.4–0.6 mm.

declined or pendulous, stramineous or brownish, straight or incurved, oblong, or broadly and plumply so to oblong-ellipsoid or clavately oblong, (13–)15–28(–32) × 3.5–8.5 mm, fleshy becoming leathery or subligneous, densely strigulose;

gynophore to 0.8 mm.

6–8.

20–30.