Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

sprawling or climbing, slender, 10–20 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.

3–6 cm;

tendrils branched;

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

leaflets 10–16, blades ovate-oblong to linear, 10–30 × 4–9 mm, apex obtuse, surfaces villous.

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

2–12-flowered, 3–12 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.

13–18 mm;

calyx base gibbous, lobes unequal, usually equal to tube;

corolla white at base, purple apically, banner pandurate, blade shorter than or equal to claw, glabrous;

style compressed adaxially, pubescent apically.

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

stipe 1–2 mm.

tawny, narrowly oblong, 25–35 × 8–12 mm, oblique-tipped, densely villous;

stipe to 1–2 mm.

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

hilum encircling 1/4 circumference of seed.

4 or 5, velvety black with prominent white hilum, compressed-subglobose, 4–5 mm diam.;

hilum encircling 1/5 circumference of seed.

= 14.