Flora of North America species comparison

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

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.

1–3-flowered, 0–1 cm.

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.

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

stipe absent.

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.