Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

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

4–11 cm;

tendrils branched;

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

leaflets 10–16, blades elliptic-oblong to linear, 7–30 × 1–11 mm, apex obtuse, abaxial surface glabrous, adaxial often sparsely long-pubescent.

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.

8–25-flowered, 2–15 cm, shorter to longer than subtending leaf rachis.

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

4–7 mm;

calyx base symmetric, lobes equal, usually shorter than tube;

corolla cream-white with purple-tipped keel, banner pandurate, blade equal to claw, glabrous;

style compressed adaxially, pubescent evenly for some length along style.

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.

reddish brown, oblong, 20–35 × 5–8 mm, acute-tipped, glabrous;

stipe 1–2 mm.

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

stipe to 1 mm.

5–9, purplish black, compressed-subglobose, 2–3 mm diam.;

hilum encircling 1/4 circumference of seed.

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

hilum encircling 1/4 circumference of seed.