Flora of North America species comparison

sprawling or climbing, filiform, 1–5 dm.

erect or climbing, slender, 3–10 dm.

1–4 cm;

tendrils simple or branched;

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

leaflets 4–12, blades oblanceolate or elliptic to linear, 6–20 × 1–5 mm, apex acute to apiculate, surfaces glabrous or sparsely villous.

6–10 cm;

tendrils branched;

stipules much smaller than leaflets, semisagittate, with nectariferous patch abaxially;

leaflets 8–16, blades ovate or elliptic to lanceolate, 20–35 × 5–15 mm, apex obtuse to truncate-emarginate, abaxial surface sparsely pubescent, adaxial glabrous.

1–3-flowered, 1–3 cm, equal to or longer than subtending leaf rachis.

2–7-flowered, to 1 cm, shorter than subtending leaf rachis.

3–6 mm;

calyx base symmetric, lobes unequal, longer than or equal to tube;

corolla light purple to pale lavender, banner stenonychioid, blade equal to claw, glabrous;

style compressed abaxially, sparsely pubescent apically.

8–15 mm;

calyx base symmetric, lobes equal, shorter than tube;

corolla blue-violet and white, banner oblong, blade equal to claw, glabrous;

style compressed abaxially, pubescent apically, tufted abaxially.

yellow to light brown, oblong, 10–15 × 3–4 mm, tip rounded, stigma attached to center of curve, glabrous;

stipe to 1 mm.

black, elliptic, 20–35 × 5–8 mm, tip up-curved, glabrate;

stipe to 2 mm.

4, greenish gray to purplish black, subglobose, 1.5–2 mm diam.;

hilum encircling 1/5–1/4 circumference of seed.

3–6, yellowish, reddish, gray or greenish gray with blackish spots or entirely black, globose, 3–4 mm diam.;

hilum encircling 1/2–3/4 circumference of seed.

= 14.

= 12, 14.