Flora of North America species comparison

prostrate or decumbent to ascending, densely villous-tomentose.

erect, decumbent, or incurved-ascending, with 2–4 much-elongated internodes, 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.

(3–)5–17 cm;

stipules 4–7 mm, papery-scarious at proximal nodes, submembranous at distal nodes;

leaflets (11 or)13–21, blades oblong-obovate, ovate, linear-oblong, or linear-elliptic, 3–17 mm, apex truncate to deeply retuse or obtuse to subacute, surfaces strigulose.

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

axis (1–)1.5–12 cm in fruit;

bracts 2–5 mm;

bracteoles 0.

7–25(–30)-flowered, flowers nodding;

axis 1.5–12(–16) cm in fruit;

bracts 1–2.5 mm;

bracteoles 0–2.

erect or incurved-ascending, 5–12 cm.

incurved-ascending, 6–20(–24) cm.

0.5–1 mm.

0.7–5 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.

(11.2–)12.5–16.6 mm;

calyx campanulate, 4.5–7 mm, strigulose, tube 3.8–5.5 mm, lobes subulate, 0.7–1.2(–1.5) mm;

corolla white, keel tip maculate;

banner recurved through 90°;

keel 8.8–10.7 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.

erect, stramineous, ± straight or slightly incurved, narrowly oblong or ovoid-oblong, obcompressed, 12–17 × 3.3–6.3 mm, ± bilocular, fleshy becoming leathery, glabrous;

septum 0.7–1.1 mm wide;

sessile.

6–8.

24–36.