Flora of North America species comparison

and herbage densely to sparsely strigulose, villosulous, or villous, hairs basifixed.

and herbage strigulose, hairs malpighian.

(0.2–)0.4–1.5(–2) cm;

stipules 2–7 mm;

leaflets (3 or)5–9, blades 1–9 mm, surfaces pubescent or adaxially glabrous or medially glabrescent.

1–1.7 cm;

stipules dimorphic, those at proximal nodes connate into short, bidentate sheath, those at distal nodes longer, connate at base only, lanceolate or lanceolate-acuminate, often without spines, 1.5–7(–8) mm;

leaflets 5, blades 4–10 mm, surfaces pubescent.

0–1.5(–3) cm.

0.1–0.6 cm.

(3.9–)4.5–8(–9.2) mm;

calyx (2–)2.4–5.7(–7) mm, tube 1.2–2.6(–2.8) mm, lobes subulate to setaceous, (0.5–)1.9–2.6(–4.2) mm;

corolla usually purple or purplish, sometimes white and keel tip pink or purplish.

5.2–6.5 mm;

calyx 3.6–5.1 mm, tube 1.6–2.5 mm, lobes subulate, spinulose, 1.9–3 mm;

corolla whitish, banner and keel tips sometimes faintly tinged pink or lilac.

ellipsoid or oblong-ellipsoid, (3–)4–8(–9) × (0.6–)2–2.5 mm.

lenticular or ovoid-lenticular, 3–4.5 × 1.4–2 mm.

(3–)5–8.

2(or 3).

= 24.

= 24.