Flora of North America species comparison

and herbage strigulose, hairs malpighian.

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

(0.8–)1–2.6 cm;

stipules dimorphic, those at proximal nodes connate with bidentate tip, those at distal nodes connate near base with spiny tips, 1–12 mm;

leaflets (3 or)5 or 7, blades (2–)5–15(–17) mm, surfaces usually pubescent, sometimes glabrous adaxially.

(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.

0.1–0.6 cm.

0–1.5(–3) cm.

4.8–6.2 mm;

calyx 3.4–4.4 mm, tube 1.8–2.3 mm, lobes subulate, spinulose, 1.5–2.4 mm;

corolla usually whitish or faintly veined or tinged purple, fading ochroleucous, rarely pink-purple.

(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.

narrowly ovoid-acuminate, (3.5–)4–7 × 1.5–2 mm.

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

2–4.

(3–)5–8.

= 24.

= 24.