Flora of North America species comparison

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

not winged, erect, sprawling or climbing, basally branched 1–several times, 2–5 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.

0.5–1.5 cm;

tendrils bristlelike to 4 cm, often unbranched;

stipules linear, 10–15 × 2–10 mm, much smaller than leaflets;

leaflets 2, blades linear, 20–90 × 2–10 mm, surfaces glabrous.

2–5-flowered, 4–7 cm.

1-flowered, 1–2 cm, prolonged beyond flower into a bristle.

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.

6–10 mm;

calyx lobes subequal, lateral lobes lanceolate, longer than tube;

corolla reddish orange, banner erect, blade longer than or equal to claw, wings equal to keel;

ovary glabrous.

30–50 × 5–15 mm.

40–60 × 4–6 mm, longitudinal venation prominent.

= 14.