Flora of North America species comparison

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

erect, glabrous or sparsely villous.

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–)5–12(–16) cm;

stipules 4–15 mm, submembranous;

leaflets (13–)19–27(–37), blades ovate, lanceolate-oblong, or oblong-obovate, (3–)5–22 mm, midrib prominent, pubescent abaxially, apex truncate and apiculate, retuse, obtuse, or subacute, surfaces glabrous or sparsely villous abaxially, glabrous adaxially.

(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.

(10–)15–40-flowered;

axis (1–)2–4.5 cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

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

erect, 5–13 cm.

0.5–3 mm.

0.6–1.8 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.

9.1–11 mm;

calyx 6.6–9 mm, sparsely villous-villosulous, tube 3.2–4.3 × 2.4–3 mm, lobes linear to lanceolate-acuminate, 3.3–4.9 mm;

corolla white, immaculate;

banner recurved through 45°;

keel 7–7.4 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.

declined, stramineous or brown, slightly incurved, obliquely lanceoloid, 3-sided compressed, grooved dorsally, 11–15 × 3–3.4 mm, papery, villosulous, hairs 1+ mm;

septum 1.5–2.2 mm wide;

stipe 0.3–0.4 mm.

6–11.

8 or 9.