Flora of North America species comparison

and herbage strigulose, hairs malpighian.

and herbage strigulose, hairs basifixed or obscurely malpighian.

0.5–1.3 cm;

stipules dimorphic, those at proximal nodes connate, those at distal nodes free and ± spine-tipped, 1.5–4 mm;

leaflets (3 or)5, blades 3–9 mm.

(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.

0.1–0.4 cm.

subobsolete to 0.2 cm.

5.2–6.5 mm;

calyx 3.6–4.7 mm, tube 1.8–2.1 mm, lobes subulate, spinulose, 1.8–2.6 mm;

corolla whitish, keel tip 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.

obliquely lanceoloid-acuminate, 5–7.5 × 1.6–2 mm.

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

2 or 3(or 4).

2 or 3(or 4).

= 24.

= 24.