Flora of North America species comparison

prostrate, silvery-pilose.

prostrate or decumbent, sparsely 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.

1.5–10.5 cm;

stipules distinct, 1–4 mm, mostly herbaceous or submembranous;

leaflets 9–19, blades obovate, oblong-oblanceolate to -obovate, obcordate, suborbiculate, or elliptic, 2–15 mm, apex obtuse or emarginate, surfaces sparsely strigulose abaxially, glabrous adaxially.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

(1 or)2–10-flowered, flowers ascending or spreading;

axis (0–)1–4 cm in fruit;

bracts 1–2.5 mm;

bracteoles 2.

0.5–2.5 cm.

ascending, 1–7.5 cm.

1–3.5 mm.

1–3.5 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.

5.5–8 mm;

calyx campanulate, 3–4.3 mm, strigulose, hair white or partly black, tube 1.5–2.8 mm, lobes subulate, 1.2–2 mm;

corolla white, banner with pink veins;

banner recurved through 45–90°;

keel 3.6–5 mm, apex bluntly deltate.

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

ascending, spreading, or loosely declined, green, purplish, or purple- or red-mottled becoming brownish or stramineous, incurved, narrowly oblanceoloid or obliquely semi-ovoid, ± inflated, ± 3-sided compressed, (5–)6–26 × 2.7–5 mm, thin becoming papery, finely strigulose, hairs straight, appressed;

gynophore conical, short.

6–10.

6–15.