Flora of North America species comparison

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

erect, sprawling, or climbing, robust, 3–8 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.

4–8 cm;

tendrils rudimentary or branched;

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

leaflets 10–20, blades obovate or oblong-elliptic to linear, 5–20 × 2–6 mm, apex obtuse to truncate-emarginate, surfaces pilose.

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

2–4-flowered, 0–1 cm.

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.

14–20 mm;

calyx base symmetric, lobes unequal, abaxial lobe subequal to tube;

corolla cream, sometimes with purplish tinge, banner oblong, blade subequal to claw, pubescent adaxially;

style compressed abaxially, pubescent apically, tufted abaxially.

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

stipe to 4–5 mm.

purple to black, elliptic, 20–30 × 7–11 mm, oblique-tipped, villous;

stipe to 1–2 mm.

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

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

2–8, purplish, sometimes spotted black, globose to strongly flatted, 3–5 mm diam.;

hilum whitish, linear, encircling 1/6–1/4 circumference of seed.

= 12.