Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

erect, sprawling, or climbing, robust, 3–8 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.

4–8 cm;

tendrils rudimentary or branched;

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

leaflets 10–20, blades obovate or oblong-elliptic to linear, 5–20 × 2–6 mm, apex obtuse to truncate-emarginate, surfaces pilose.

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

2–4-flowered, 0–1 cm.

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.

14–20 mm;

calyx base symmetric, lobes unequal, abaxial lobe subequal to tube;

corolla cream, sometimes with purplish tinge, banner oblong, blade subequal to claw, pubescent adaxially;

style compressed abaxially, pubescent apically, tufted abaxially.

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

stipe 1–2 mm.

purple to black, elliptic, 20–30 × 7–11 mm, oblique-tipped, villous;

stipe to 1–2 mm.

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

hilum encircling 1/4 circumference of seed.

2–8, purplish, sometimes spotted black, globose to strongly flatted, 3–5 mm diam.;

hilum whitish, linear, encircling 1/6–1/4 circumference of seed.

= 12.