Flora of North America species comparison

prostrate to erect, (0.5–)2–20+ cm underground, strigose, glabrate, or glabrous.

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

1.5–7 cm;

stipules 2–4 mm, herbaceous becoming papery;

leaflets (5 or)7–13, blades lanceolate to elliptic or oblong, 2–9 mm, margins involute and long-ciliate, apex obtuse, surfaces strigose abaxially, glabrous adaxially.

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.

2–10-flowered, flowers spreading to declined;

axis 0.2–0.5 cm in fruit;

bracts 1–3 mm;

bracteoles 0.

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

axis (1–)2–8 cm in fruit;

bracts 0.7–1.7 mm;

bracteoles 0.

erect and ascending, reclined in fruit, 2–5 cm.

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

0.8–1.5 mm.

1.5–4(–4.5) mm.

6.2–7.5 mm;

calyx 2.8–3.6 mm, strigose, tube 2–2.5 mm, lobes subulate, 0.7–1.6 mm;

corolla ochroleucous or pink-purple, then wing tips same color;

keel 3.9–4.8 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.

pale green, red-mottled, becoming stramineous, ovoid, 9–18(–22) × 7–13(–15) mm, papery-membranous, opaque, strigose.

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.

10–12.

2–6.