Flora of North America species comparison

angled, erect, basally branched 0–2 times, 2–5 dm.

angled, erect, sprawling, or climbing, often branched mid stem 1–4 times, 2–6 dm.

2–4 cm;

tendrils simple or branched, sometimes prehensile;

stipules linear, 5–15 × 1–2 mm, much smaller than leaflets;

leaflets 6 or 8, scattered, blades ovate to lanceolate, 15–45 × 4–10 mm, surfaces glabrous throughout or puberulent abaxially.

2–6 cm;

tendrils absent to well developed, 0–3 cm, usually not branched;

stipules linear, 5–15 × 1–5 mm, much smaller than leaflets;

leaflets 4–8, often paired, blades ovate, 15–30 × 5–20 mm, surfaces glabrous, or linear, 30–70 × 1–10 mm, surfaces glabrous or pubescent.

2–4-flowered, 7–12 cm.

5–15-flowered, 2–7 cm.

18–20 mm;

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

corolla blue-purple, banner erect, blade longer than claw, wings equal to keel (held above keel);

ovary glabrous.

7–13 mm;

calyx lobes unequal, lateral lobes often linear-triangular, sometimes lanceolate, shorter than tube;

corolla white, banner erect, blade equal to claw, wings equal to keel;

ovary glabrous.

40–50 × 8–10 mm, short-stipitate.

40–60 × 4–7 mm.

= 14.

= 14.