Flora of North America species comparison

erect-ascending or climbing, slender to robust, 3–10 dm.

erect or climbing, slender, 3–10 dm.

3–8 cm;

tendrils simple or branched;

stipules foliose, approaching leaflets in size, semisagittate, with nectariferous patch abaxially;

leaflets 8–14, blades ovate-oblong, narrowly elliptic, or linear [obovate], 15–30 × 5–15 mm, apex obtuse to truncate-emarginate, distinctly apiculate, surfaces hirsute.

6–10 cm;

tendrils branched;

stipules much smaller than leaflets, semisagittate, with nectariferous patch abaxially;

leaflets 8–16, blades ovate or elliptic to lanceolate, 20–35 × 5–15 mm, apex obtuse to truncate-emarginate, abaxial surface sparsely pubescent, adaxial glabrous.

usually (1 or)2(–4)-flowered, 0–1 cm.

2–7-flowered, to 1 cm, shorter than subtending leaf rachis.

10–30 mm;

calyx base symmetric, lobes subequal, ± equal to tube;

corolla violet-purple, lavender, or whitish, banner stenonychioid, blade shorter than or equal to claw, glabrous;

style compressed abaxially, pubescent apically, tufted abaxially.

8–15 mm;

calyx base symmetric, lobes equal, shorter than tube;

corolla blue-violet and white, banner oblong, blade equal to claw, glabrous;

style compressed abaxially, pubescent apically, tufted abaxially.

yellow to brown, or reddish brown to black, linear, 25–60 × 3–11 mm, oblique-tipped, glabrous or pubescent;

stipe absent.

black, elliptic, 20–35 × 5–8 mm, tip up-curved, glabrate;

stipe to 2 mm.

4–12, usually greenish gray to maroon or black, rarely yellowish white, globose or ± compressed, 3–5 mm diam.;

hilum encircling 1/6–1/5 circumference of seed.

3–6, yellowish, reddish, gray or greenish gray with blackish spots or entirely black, globose, 3–4 mm diam.;

hilum encircling 1/2–3/4 circumference of seed.

= 12, 14.