Flora of North America species comparison

prostrate, silvery-pilose.

single or to 3, prostrate to ascending or erect, strigulose.

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–)2–10.5(–12) cm;

stipules distinct, 1.5–4 mm, thinly herbaceous or submembranous;

leaflets (3–)7–13, blades linear, linear-oblong, oblanceolate, or linear-elliptic, rarely obcordate, 3–18 mm, apex obtuse to retuse, surfaces strigose abaxially, strigose or glabrous adaxially.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

2–8-flowered, flowers ascending;

axis 0.3–1.5 cm in fruit;

bracts 0.7–2 mm;

bracteoles 0–2.

0.5–2.5 cm.

incurved-ascending, 0.6–2.5 cm.

1–3.5 mm.

0.6–1.5 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.

5–7.6 mm;

calyx campanulate, (2–)2.7–3.8(–4) mm, strigose, tube 1.5–2.5 mm, lobes subulate to lanceolate, 0.6–1.5 mm;

corolla whitish, suffused with purple, or pink-purple;

banner recurved through 45°;

keel 3.8–4.8 mm, apex obtuse, deltate.

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

spreading to declined, green or suffused purple, becoming stramineous, straight or slightly incurved, obliquely ovoid, bladdery-inflated, 15–24 × 6–12 mm, unilocular or semibilocular, thin becoming papery, strigose, hairs straight, appressed;

seed-bearing flange 0.2–1.5 mm wide.

6–10.

7–18.