Flora of North America species comparison

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

winged, sprawling or climbing, basally branched 0–3 times, 4–25 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.

5–15 cm;

tendrils well developed;

stipules narrowly lanceolate to linear, 10–25 × 2–6 mm, much smaller than leaflets;

leaflets 8–12, scattered, blades lanceolate, 20–60 × 4–20 mm, surfaces glabrous or pubescent.

2–5-flowered, 5–15 cm.

5–15-flowered, 6–16 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.

14–17 mm;

calyx lobes unequal, lateral lobes linear-triangular, equal to tube;

corolla pale pink to rose-purple, banner erect, blade longer than claw, wings equal to keel;

ovary glabrous.

30–40 × 6–8 mm.

50–90 × 6–9 mm.