Flora of North America species comparison

erect or ascending, strigulose to pilose, cinereous or canescent.

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

3–10(–14) cm;

stipules 2.5–10 mm, scarious;

leaflet blades linear, linear-oblanceolate, or narrowly elliptic, (2–)4–27(–45) mm, apex acute to subobtuse, surfaces strigose abaxially, glabrous adaxially.

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.

9–47-flowered;

axis (2–)3–15(–20) cm in fruit;

bracts (2–)3–7 mm;

bracteoles 0–2.

(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.

erect, 1–4(–5.5) cm, much shorter than subtending leaves.

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

0.3–1.2 mm.

0.5–3 mm.

13–17.2 mm;

calyx (7.2–)7.5–11 mm, strigulose to pilose, tube (5.4–)5.7–7.4 mm, lobes lanceolate-subulate, (1.5–)1.8–3.6 mm;

corolla banner recurved through 45°;

keel 10.4–12.8 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.

brown-stramineous, gently incurved, dorsiventrally compressed or 3-sided at dehiscence, carinate by ventral suture, beak laterally compressed, 9–12 × 3.3–5 mm, papery, strigose or glabrous;

stipe 0.7–2.5 mm.

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.

6–11.

= 22.