Flora of North America species comparison

angled, erect, sprawling, or climbing, basally branched 0–3 times, 1–5 dm.

angled, erect or sprawling, basally branched 0–2 times, 1.5–3 dm.

2–9 cm;

tendrils usually well developed, sometimes reduced to a single bristle;

stipules lanceolate, 5–12 × 1–3 mm, much smaller than leaflets;

leaflets 6–12, scattered, blades elliptic to narrowly so, 8–70 × 3–8 mm, surfaces glabrous or villous.

1–4 cm;

tendrils bristlelike, usually less than 1 cm;

stipules linear to lanceolate, 10–30 × 1–5 mm, nearly equal to leaflets;

leaflets 8–12, often paired, blades lanceolate to linear, 10–35 × 1–5 mm, surfaces glabrous or pubescent.

2–5-flowered, 5–15 cm.

2–6-flowered, 4–11 cm.

13–20 mm;

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

corolla pinkish to deep blue-purple, banner erect, blade nearly 2 times as long as claw, wings equal to keel;

ovary glabrous.

16–22 mm;

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

corolla usually violet to magenta, sometimes white, banner erect, blade longer than claw, wings 4–5 mm longer than keel;

ovary glabrous.

30–40 × 6–8 mm.

35–50 × 8–12 mm, stipitate.