Flora of North America species comparison

erect, sprawling, or climbing, slender to robust, 1–8 dm.

1–4 cm;

tendrils simple or branched;

stipules foliose, sometimes wider than leaflets, semisagittate, without nectariferous patch;

leaflets 6 or 8, blades oblong-elliptic to linear, 7–25 × 1–6 mm, apex obtuse, surfaces long-villous abaxially, glabrous adaxially.

1- or 2-flowered, 1–3 cm, equal to subtending leaf rachis.

7–9 mm;

calyx base symmetric, lobes subequal, longer than tube;

corolla cream to white with purple keel tip, banner stenonychioid, blade shorter than or equal to claw, glabrous;

style terete, hairs in dense ring between stigma and ovary.

pale brown, oblong, 25–40 × 4–6 mm, oblique-tipped, appressed-pubescent;

stipe to 1 mm.

6–9, reddish brown, compressed-globose, 2.5 mm diam.;

hilum encircling 1/4 circumference of seed.