Flora of North America species comparison

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

sprawling or climbing, somewhat robust, to 10 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.

2–4 cm;

tendrils simple or branched;

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

leaflets 4–8, blades elliptic to lanceolate-linear, 8–40 × 1–9 mm, apex acute to truncate, surfaces glabrous or sparsely pubescent.

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

1- or 2-flowered, 1–3 cm, ± 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.

6–9 mm;

calyx base symmetric, lobes subequal, 1/2 length of tube;

corolla white to faint bluish or lavender, banner pandurate, blade equal to claw, glabrous;

style compressed adaxially, pubescent along style.

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

stipe to 4–5 mm.

tawny, oblong, 22–38 × 5–7 mm, oblique-tipped, strongly reticulate-veined, glabrous or finely pubescent;

stipe to 2–3 mm.

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

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

4–7, purplish black, compressed-subglobose, 2.5–3 mm diam.;

hilum encircling 1/5 circumference of seed.

= 14.