Flora of North America species comparison

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

sprawling or climbing, slender, 10–20 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.

3–6 cm;

tendrils branched;

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

leaflets 10–16, blades ovate-oblong to linear, 10–30 × 4–9 mm, apex obtuse, surfaces villous.

usually (1 or)2(–4)-flowered, 0–1 cm.

2–12-flowered, 3–12 cm, equal to 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.

13–18 mm;

calyx base gibbous, lobes unequal, usually equal to tube;

corolla white at base, purple apically, banner pandurate, blade shorter than or equal to claw, glabrous;

style compressed adaxially, pubescent apically.

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

stipe absent.

tawny, narrowly oblong, 25–35 × 8–12 mm, oblique-tipped, densely villous;

stipe to 1–2 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.

4 or 5, velvety black with prominent white hilum, compressed-subglobose, 4–5 mm diam.;

hilum encircling 1/5 circumference of seed.

= 14.