Flora of North America species comparison

decumbent and incurved-ascending or erect, sparsely to densely strigulose or glabrate.

single or few, prostrate-ascending, 3.5–14 cm underground, strigulose.

1.5–9.5 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, connate or distinct and submembranous at distal nodes, 1–4 mm, not blackened when dry;

leaflets 11–19, blades elliptic to oblong, lanceolate, or broadly oval, 3–17(–19) mm, apex acute to obtuse and apiculate, surfaces strigose abaxially, strigose or glabrous adaxially.

3–14 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 2–6 mm, membranous;

leaflets 7–15(–19), blades obovate, 4–15 mm, apex round to emarginate, surfaces strigose, sometimes glabrous adaxially.

(1–)3–13-flowered, flowers ascending to spreading;

axis (1–)2–8 cm in fruit;

bracts 0.7–1.7 mm;

bracteoles 0.

5–20-flowered;

axis 1.2–13 cm in fruit;

bracts 1.5–3 mm;

bracteoles 2.

decumbent or humistrate (in fruit), 3–10(–14) cm.

erect, 0.5–9.5 cm.

1.5–4(–4.5) mm.

1–3 mm.

8–10.5 mm;

calyx (3.4–)4.5–6.7 mm, strigose, tube (2.6–)3–4.3 mm, lobes subulate, (0.8–)1.2–2.9 mm;

corolla pink-purple, or whitish and purple-tipped;

banner recurved through 50°;

keel 6.7–8.8 mm.

13.5–22 mm;

calyx 4.8–7.5 mm, black-strigose, tube 4.2–6 mm, lobes broadly triangular, 0.5–1.5 mm;

corolla ochroleucous, or pink-purple with white wing tips;

banner recurved through 30°;

keel 9–12.2 mm.

pendulous, brown, straight or nearly so, ellipsoid or oblong-ellipsoid, laterally flattened, (7–)9–15 × 3–4.2 mm, thinly papery, strigose;

stipe 1–1.5(–2) mm.

ascending-erect, green and purple-dotted becoming purple-stramineous, straight or slightly decurved, ovoid to subglobose, terete, inflated, 12–20 × 8–11 mm, thin becoming papery, glabrous or glabrate;

stipe 9–19 mm.

2–6.