Flora of North America species comparison

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

sprawling, 2–6 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.

3–6 cm;

tendrils usually branched;

stipules much smaller than leaflets, semisagittate;

leaflets 12–20, blades narrowly elliptic to linear, 7–12 × 1–5 mm, apex blunt to acute and mucronulate, surfaces glabrous or puberulent.

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

2–5-flowered, 2–5 cm, somewhat shorter 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.

4–5 mm;

calyx base symmetric, lobes unequal, lateral lobes equal to tube;

corolla blue, banner pandurate, blade 2 times length of claw, glabrous;

style compressed adaxially, pubescent apically.

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

stipe to 4–5 mm.

tawny, oblong-subrhomboidal, 12–16 × 5–7 mm, glabrous; short-stipitate.

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

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

2, purplish black, compressed-globose, 4–5 mm diam.;

hilum encircling 1/6 circumference of seed.