Flora of North America species comparison

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

sprawling-decumbent, 1–20 cm underground, sparsely to densely 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.

2.5–11.5(–15) cm;

stipules distinct throughout, 1.5–7 mm, scarious at proximal nodes, herbaceous at distal nodes; short-petiolate or subsessile;

leaflets (11–)15–29, blades usually broadly to narrowly elliptic or oblong, rarely oblong-obovate, (2–)4–13(–17) mm, apex usually obtuse or acute, rarely truncate-emarginate, surfaces sparsely pilose or glabrescent, sometimes glabrous adaxially.

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.

(3–)6–15-flowered, flowers ascending or spreading;

axis 0.7–2.5(–3.2) cm in fruit;

bracts (2–)3–7.5 mm;

bracteoles (0 or)2.

erect, (1.5–)2–7 cm.

ascending, (1–)2–8(–9) cm.

0.3–1.3 mm.

1.4–2.8 mm.

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.

(14.3–)16.5–20(–21.5) mm;

calyx purplish, deeply campanulate, 7.8–12.2(–13.7) mm, pilose or shortly pilosulous, tube 5.4–7.8 mm, lobes subulate or lanceolate-subulate, (2–)2.6–4.7(–6.1) mm;

corolla pink-purple or lilac-purple, sometimes pale, wings and keel maculate;

keel (11.5–)12–15.5(–16) mm.

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.

long persisting then finally disjointing from receptacle, green, often purple-mottled, straight, obliquely ovoid-oblong or subglobose, ± obcompressed, 10–17(–20) × 10–13 mm, bilocular, fleshy becoming stiffly leathery, mesocarp 1.5–2 mm thick, not separated into 2 layers, strigulose or pilosulous.

8–20.

(28–)32–48(–52).