Flora of North America species comparison

prostrate or decumbent to ascending, densely villous-tomentose.

ascending, decumbent, or sprawling, silky-strigose, villous, or villous-tomentose.

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–)2–7(–10) cm;

stipules clasping with margins touching but distinct or shortly connate at proximal nodes, distinct at distal nodes, (1–)2–7(–11) mm, often veined, semileathery;

leaflet blades linear, lanceolate, oblong, elliptic, or elliptic-oblanceolate, 3–33(–35) mm, apex acute, subacute, or obtuse, surfaces glabrous, glabrate, or pubescent.

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

axis (1–)1.5–12 cm in fruit;

bracts 2–5 mm;

bracteoles 0.

densely or loosely 6–40-flowered;

axis 1.5–15 cm in fruit, elongating little after flowering;

bracts 1.2–5 mm;

bracteoles 0.

erect or incurved-ascending, 5–12 cm.

usually erect, rarely humistrate in fruit, (2–)2.5–15 cm, equal to or longer than subtending leaf, together with racemes usually shorter than stems.

0.5–1 mm.

0.8–2.2 mm 1.2–3.5 mm in fruit.

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.

7–13.8(–14.5) mm;

calyx 3.7–6.4 mm, villous or strigulose, tube 2.4–5 mm, lobes subulate, (1–)1.1–4 mm;

corolla white to purplish or creamy white;

wing apex bidentate;

keel (6.1–)6.7–9.6 mm, shorter than wings.

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.

green, often with red or purple, becoming stramineous, ± straight or slightly curved abaxially, convex adaxially, not sulcate, obliquely ellipsoid, semi-ellipsoid, or narrowly oblong, laterally compressed, 10–30 × 3–9(–11) mm, papery, translucent, usually glabrous, sometimes strigose, hyaline septum 0–0.6 mm wide;

stipe 2.5–8[–10] mm.

6–8.

8–16.