Flora of North America species comparison

erect-ascending or climbing, slender to robust, 3–10 dm.

few, sprawling or climbing, slender, 2–15 dm.

3–8 cm;

tendrils simple or branched;

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

leaflets 8–14, blades ovate-oblong, narrowly elliptic, or linear [obovate], 15–30 × 5–15 mm, apex obtuse to truncate-emarginate, distinctly apiculate, surfaces hirsute.

2–6 cm;

tendrils simple or branched;

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

leaflets (2 or)4(or 6), blades narrowly lanceolate to linear, 15–30 × 1–5 mm, apex obtuse, surfaces glabrous or sparsely long-pubescent.

usually (1 or)2(–4)-flowered, 0–1 cm.

4–10-flowered, 2–7 cm, longer than subtending leaf rachis.

10–30 mm;

calyx base symmetric, lobes subequal, ± equal to tube;

corolla violet-purple, lavender, or whitish, banner stenonychioid, blade shorter than or equal to claw, glabrous;

style compressed abaxially, pubescent apically, tufted abaxially.

6–8 mm;

calyx base symmetric, lobes unequal, longest one shorter than tube;

corolla pale blue or lavender to white, banner pandurate, blade subequal to claw, glabrous;

style compressed adaxially, evenly pubescent apically.

yellow to brown, or reddish brown to black, linear, 25–60 × 3–11 mm, oblique-tipped, glabrous or pubescent;

stipe absent.

brown to black, linear-oblong, 20–25 × 4–6 mm, oblique-tipped, sparsely long-pubescent;

stipe to 1–2 mm.

4–12, usually greenish gray to maroon or black, rarely yellowish white, globose or ± compressed, 3–5 mm diam.;

hilum encircling 1/6–1/5 circumference of seed.

4–8, purplish black, compressed-globose, 2–2.5 mm diam.;

hilum encircling 2/3 circumference of seed.