Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

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

4–11 cm;

tendrils branched;

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

leaflets 10–16, blades elliptic-oblong to linear, 7–30 × 1–11 mm, apex obtuse, abaxial surface glabrous, adaxial often sparsely long-pubescent.

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.

8–25-flowered, 2–15 cm, shorter to longer than subtending leaf rachis.

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

4–7 mm;

calyx base symmetric, lobes equal, usually shorter than tube;

corolla cream-white with purple-tipped keel, banner pandurate, blade equal to claw, glabrous;

style compressed adaxially, pubescent evenly for some length along style.

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.

reddish brown, oblong, 20–35 × 5–8 mm, acute-tipped, glabrous;

stipe 1–2 mm.

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

stipe to 4–5 mm.

5–9, purplish black, compressed-subglobose, 2–3 mm diam.;

hilum encircling 1/4 circumference of seed.

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

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