Flora of North America species comparison

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

angled, erect, sprawling, or climbing, basally branched 1–3 times, 3–8 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.

6–9 cm;

tendrils well developed;

stipules ovate to lanceolate, 15–25 × 5–11 mm, much smaller than leaflets;

leafets 6–10, scattered, blades lanceolate to linear or ovate, 20–80 × 2–35 mm, surfaces glabrous.

2–5-flowered, 5–15 cm.

4–13-flowered, 5–18 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.

12–20 mm;

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

corolla pale blue-lavender to purple, banner erect, blade longer than claw, wings longer than keel, (by 1–4 mm);

ovary glabrous.

30–40 × 6–8 mm.

30–50 × 5–10 mm.