Flora of North America species comparison

and herbage strigulose, hairs malpighian.

and herbage strigulose, 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.

0.4–1.5(–2) cm;

stipules somewhat dimorphic, 2–7 mm;

leaflets 3(–7), blades 3–7 mm.

0.1–0.6 cm.

0.2–0.6 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.

4–5.6 mm;

calyx 2.4–3.2 mm, tube 1.6–1.9 mm, lobes subulate to setaceous, 0.8–1.3 mm;

corolla purple or whitish and keel purple.

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

subsymmetrically lenticular, 3.5–5 × 2–2.5 mm.

2–4.

5–8.

= 24.

= 24.