Flora of North America species comparison

prostrate, silvery-pilose.

erect, incurved-ascending, or decumbent, sparsely strigulose or glabrate.

1–4 cm;

stipules 2–8 mm, hyaline, densely pilose abaxially;

leaflets usually 3, rarely 5, blades narrowly to broadly oblanceolate or obovate-cuneate, 3–13 mm, apex subacute, surfaces silvery-pilose.

(1.5–)2–5(–6) cm;

stipules (1–)1.2–4 mm, submembranous becoming papery;

leaflets (5 or)7–11(or 13), blades broadly obovate, obovate-cuneate to oblanceolate, or suborbiculate-obcordate, 2–12 mm, apex emarginate or retuse, surfaces strigulose abaxially, glabrous adaxially.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

2–10-flowered, flowers spreading;

axis 0.1–0.4(–0.5) cm in fruit, not elongating;

bracts 0.5–0.8 mm;

bracteoles 0–2.

0.5–2.5 cm.

erect, (1.5–)2–7 cm.

1–3.5 mm.

0.3–1.3 mm.

5–6.2(–8) mm;

calyx campanulate, 2.4–4.2 mm, densely pilose, tube 2–3 mm, lobes triangular-subulate, 1–1.2 mm;

corolla pink-purple or white, often drying yellowish;

banner recurved through 90°;

keel 4–4.5 mm, apex bluntly deltate.

7.2–12 mm;

calyx 2.5–5 mm, strigulose, tube (1.8–)2.7–3.4 mm, lobes subulate, 0.6–1.7 mm;

corolla pink-purple, wing tips pale or banner and keel tips maculate;

banner recurved through 40°;

keel 3.8–8.1 mm, apex broadly rounded or deltate, often obscurely beaklike.

ascending or recurved, ovoid-ellipsoid, slightly compressed, 3–4.5 × 2 mm, papery, densely silky-strigose or silky-pilose.

ascending, green or purple-tinged becoming brownish stramineous, gently incurved or straight, very narrowly linear, terete to obscurely 3-sided compressed, falling before splitting, dehiscent on ground, (15–)18–50(–57) × 1.7–2.7(–3.1) mm, thinly fleshy becoming papery, base cuneate or cuneate-tapered, then sometimes pseudostipitate, strigulose; bearing seeds near middle.

6–10.

8–20.