Flora of North America species comparison

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

sprawling or climbing, filiform, 2–8 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.

2–8 cm;

tendrils simple or branched;

stipules much smaller than leaflets, semisagittate, tips purple, without nectariferous patch;

leaflets 8–16, blades narrowly oblong-elliptic to linear, 5–23 × 1–6 mm, apex truncate to emarginate, surfaces glabrous.

usually (1 or)2(–4)-flowered, 0–1 cm.

2–7-flowered, 1–5 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.

2–4 mm;

calyx base symmetric, lobes subequal, equal to or longer than tube;

corolla whitish blue to purplish blue, banner stenonychioid, blade equal to claw, glabrous;

style terete, sparsely pubescent apically.

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

stipe absent.

black, oblong, 6–10 × 3–4 m, oblique at both ends, hirsute;

stipe absent.

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.

2, greenish ochroleucous to pale reddish brown or chestnut, usually ± mottled purple, subglobose to compressed-globose, 1–3 mm diam.;

hilum encircling 1/2 circumference of seed.

= 14.