Flora of North America species comparison

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

erect to ascending, with 2–5(or 6) developed internodes, strigulose.

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.

(5–)10–21 cm;

stipules 2.5–7 mm, membranous becoming papery-scarious;

leaflets 21–33, blades linear-oblong, linear-oblanceolate, or narrowly lanceolate-oblong, 2–21 mm, apex obtuse or truncate-emarginate to subacute, surfaces strigulose 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.

(8–)12–21-flowered, flowers spreading;

axis 4–12(–18) cm in fruit;

bracts 1.2–7.5 mm;

bracteoles 2.

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

erect, 14–30 cm, together with racemes much longer than stems.

0.5–3 mm.

0.7–5 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.

11.2–14.1(–17) mm;

calyx short-cylindric, (6.9–)7.6–10.6 mm, strigulose, tube 4.6–5.8 mm, lobes lanceolate-subulate, (1.9–)2.2–5.2 mm;

corolla greenish white, drying yellowish, immaculate;

banner recurved through 45°, apex crinkled, 10.5–14 mm;

wings 12.8–17 mm, longer than banner;

keel (9.4–)10.2–12.8 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.

erect, brown or stramineous, straight or slightly incurved, obliquely oblong-ellipsoid or narrowly ovoid-ellipsoid, obcompressed, 15–25 × (5.5–)6.5–10 mm, unilocular, fleshy becoming leathery, glabrous;

septum to 0.6 mm wide;

sessile.

6–11.

23–28.

= 24.