Flora of North America species comparison

angled, sprawling to erect, basally branched 0–3 times, 2–8 dm.

winged, sprawling or climbing, basally branched 0–3 times, 2–10 dm.

3–8 cm;

tendrils well developed, often branched;

stipules lanceolate, 8–12 × 2–5 mm, much smaller than leaflets;

leaflets 6–10, usually paired, blades ovate, 20–40 × 10–20 mm, surfaces glabrous.

0.5–2 cm, rachises winged as the stem;

tendrils well developed;

stipules lanceolate, 10–20 × 2–6 mm, sometimes as wide as leaflets;

leaflets 2, blades linear, 20–50 × 1–6 mm, surfaces glabrous.

2–5-flowered, 4–7 cm.

usually 1-flowered, 1–4 cm.

15–20 mm;

calyx lobes unequal, lateral lobes deltate, shorter than tube;

corolla white to slightly pink or lavender, banner erect, blade longer than claw, wings equal to keel;

ovary glabrous.

10–12 mm;

calyx lobes equal, lateral lobes linear-triangular, 2–3 times longer than tube;

corolla reddish purple, banner erect, blade equal to claw, wings equal to keel;

ovary glabrous, style rotated 90° from ovary axis.

30–50 × 5–15 mm.

20–40 × 5–10 mm, broadly winged on abaxial suture.

= 14.