Flora of North America species comparison

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

sprawling or climbing, slender to robust, 3–6 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.

1–4 cm;

tendrils branched;

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

leaflets 6–14, blades oblong to linear, 10–25 × 1–5 mm, apex obtuse to truncate-emarginate, surfaces finely pubescent.

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

1–3-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.

25–35 mm;

calyx base symmetric, lobes equal, 1/2–2/3 length of tube;

corolla yellow suffused with violet, banner stenonychioid, blade equal to claw, glabrous;

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.

black, linear, 25–45 × 7–10 mm, oblique-tipped, glabrate;

stipe absent.

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

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

ca. 15, brown with indistinct black spots, compressed-globose, 3–3.5 mm diam.;

hilum raised, white, encircling 3/4 circumference of seed.

= 12, 14.