Flora of North America species comparison

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

and herbage strigulose, hairs basifixed or obscurely 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.

(0.7–)1–2.5 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, 2–7 mm;

leaflets 5 or 7, blades 7–12 mm, surfaces pubescent abaxially, glabrous or glabrescent adaxially.

0–1.5(–3) cm.

subobsolete to 0.2 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.

4–5.5 mm;

calyx 3.4–4 mm, tube 1.9–2.4 mm, lobes subulate to setaceous, 1.4–2 mm;

corolla whitish.

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

subsymmetrically ovoid-lenticular, (3.5–)4–7 × 2.4–3.8 mm.

(3–)5–8.

2 or 3(or 4).

= 24.

= 24.