Flora of North America species comparison

usually ascending, rarely decumbent, 0–2 cm underground, strigulose to pilose-villosulous.

erect or ascending, subappressed-pilose, densely white-tomentose basally.

2.5–12 cm;

stipules 1.5–6 mm, papery at proximal nodes, herbaceous or submembranous at distal nodes;

leaflets (5 or)7–17, blades lanceolate to oblong, (3–)5–30(–32) mm, apex obtuse or emarginate, surfaces usually strigulose, sometimes villous-pilosulous, cinereous, glabrate, or glabrous abaxially, glabrous, glabrescent, or sparsely strigose adaxially.

3.5–9(–10.5) cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, (2–)3–8 mm, submembranous;

leaflets 11–19(–23), blades narrowly elliptic to lanceolate-elliptic or narrowly oblong, (3–)5–15(–18) mm, apex acute to obtuse or apiculate, surfaces villous.

(3–)5–25(–33)-flowered;

axis 1–18(–20) cm in fruit, elongating little after flowering, arising distal to middle of stem;

bracts 1–3.5 mm;

bracteoles usually 0.

(5–)10–25-flowered, flowers spreading and declined;

axis (1.5–)3–10.5 cm in fruit;

bracts 1–2.5 mm;

bracteoles 0.

incurved-ascending or erect, 3.5–21(–23) cm, usually surpassing subtending leaf, together with racemes usually shorter than stems.

erect, 0.5–5(–7) cm.

0.5–3 mm.

0.4–1.5 mm.

(6–)7.2–11.5 mm;

calyx 4–6.8 mm, strigulose, tube 3.2–4.5 mm, lobes subulate, 0.7–2.3 mm;

corolla usually purple, pink-purple, pink, lilac, lavender, or whitish, sometimes whitish with maculate keel;

wing apex obtuse;

keel 5.4–7.9 mm, shorter than wings.

4.5–6(–7) mm;

calyx campanulate, 3.5–5.5 mm, villous-villosulous, tube 1.7–2.2 mm, lobes subulate-setaceous, (1.3–)1.5–3 mm;

corolla whitish or tinged lilac, drying yellowish;

banner recurved through 50°;

keel (3.6–)4–5 mm, apex bluntly deltate, sometimes obscurely beaklike.

pendulous, green or purplish, straight or slightly decurved, ellipsoid, obtusely 3-sided, faces slightly convex, flattened or depressed but not sulcate abaxially, 13–25 × 3.5–5.5 mm, subunilocular or semibilocular, papery-membranous, sparsely strigulose, hairs black or black and white;

valves inflexed as hyaline septum 0.2–2 mm wide;

stipe (0.5–)1.5–6.5 mm.

reflexed, pale green, straight, subsymmetrically lanceoloid-ellipsoid or ellipsoid, 3-sided or laterally compressed, 6–8.5(–9) × 2–2.7(–3) mm, papery, tomentulose.

6–11.

6–8.