Flora of North America species comparison

prostrate, silvery-pilose.

decumbent to erect, 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.

3–10 cm;

stipules distinct, 1–3 mm, papery at proximal nodes, submembranous at distal nodes;

leaflets (11–)15–23, blades oblanceolate to elliptic or narrowly oblong to linear, 3–11 mm, apex obtuse to retuse or emarginate, surfaces glabrous or strigose on midrib abaxially and margins.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

loosely 5–15-flowered, flowers ascending to declined;

axis 1–5 cm in fruit;

bracts 1–2.2 mm;

bracteoles 0–2.

0.5–2.5 cm.

incurved-ascending, 1.5–5 cm.

1–3.5 mm.

1–3.4 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.

5–8 mm;

calyx campanulate, 2.9–4.6 mm, strigose, hairs usually black, sometimes also white, tube 1.7–2.3 mm, lobes subulate, 1–2.4 mm;

corolla whitish or ochroleucous;

banner abruptly recurved through 100–110°;

keel 3.9–4.6 mm, apex bluntly deltate, often obscurely beaklike.

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

deciduous from receptacle, pendulous to spreading, green, sometimes purple-mottled, becoming stramineous, straight, subsymmetrically ovoid-ellipsoid, bladdery-inflated, slightly obcompressed, 15–28 × 9–17 mm, thin becoming papery-membranous, translucent, glabrous;

sessile or on a gynophore about as broad as long.

6–10.

12–17.