Flora of North America species comparison

erect, trailing, or climbing, slender to stout, to 20 dm.

sprawling or climbing, slender, 3–15 dm.

2–8 cm;

tendrils simple or branched;

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

leaflets 8–18, blades ovate or elliptic to linear, 3–44 × 1–19 mm, apex obtuse to truncate-emarginate, or apiculate, surfaces glabrous or finely pubescent.

2–8 cm;

tendrils mucronate on proximal leaves, simple or branched on distal leaves;

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

leaflets 10–24, blades elliptic-oblong or oblanceolate to linear, 10–30 × 2–6 mm, apex obtuse, surfaces glabrous or abaxial puberulent.

3–9-flowered, 2–8 cm, shorter than or equal to subtending leaf rachis.

7–20-flowered, 3–10 cm, shorter to longer than subtending leaf rachis.

12–25 mm;

calyx base symmetric, lobes subequal, shorter than tube;

corolla usually bluish purple, rarely white, banner oblong, blade equal to claw, glabrous;

style compressed abaxially, pubescent apically, tufted abaxially.

8–12 mm;

calyx base symmetric, lobes subequal, shorter than tube;

corolla white with blue tip, banner pandurate, blade equal to or longer than claw, glabrous;

style compressed adaxially, pubescent apically, tufted abaxially.

tawny to brown, oblong, 25–39 × 5–9 mm, oblique-tipped, glabrous or pubescent;

stipe to 4–5 mm.

reddish brown, narrowly oblong, 15–30 × 4–5 mm, obliquely long-tipped, glabrous;

stipe to 2 mm.

number not known, olive-brown to deep violet-brown, subglobose, 3–4 mm diam.;

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

5–8 violet brown to black, compressed-subglobose or subglobose, 2–4 mm diam.;

hilum encircling 3/4 circumference of seed.