Flora of North America species comparison

prostrate or decumbent to ascending, densely villous-tomentose.

erect, 3–10 cm underground, cinereous.

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.

(1–)1.5–5 cm;

stipules 0.5–2.5 mm, papery-scarious at proximal nodes, herbaceous at distal nodes;

leaflets (7–)11–21, blades narrowly or broadly obovate, 1–7 mm, apex retuse or obcordate, surfaces strigose, sometimes adaxially glabrescent.

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

axis (1–)1.5–12 cm in fruit;

bracts 2–5 mm;

bracteoles 0.

5–14+-flowered;

axis 1–5 cm in fruit;

bracts 0.5–1 mm;

bracteoles 0.

erect or incurved-ascending, 5–12 cm.

divaricate, often hanging below subtending leaf, 1–3.5 cm.

0.5–1 mm.

1–2 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.

7–8.2 mm;

calyx 2.5–3 mm, villosulous, tube 2–2.5 mm, not marcescent, lobes triangular, 0.5–0.7 mm;

corolla pale lilac, or whitish to yellowish and veined and suffused with lilac, keel tip maculate;

keel 4.6–5.3 mm.

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.

pendulous, stramineous, strongly curved or coiled through (1–)1.5–2 spirals, narrowly oblong, 3–4 mm wide, papery, villosulous;

stipe 2–9 mm.

6–8.

10–16.