Flora of North America species comparison

angled, sprawling or climbing, sometimes branched at flowering nodes, 2–6 dm.

angled, climbing, basally branched 0–3 times, 5–15 dm.

5–9 cm;

tendrils usually well developed;

stipules lanceolate to linear, 8–12 × 1–5 mm, much smaller than leaflets;

leaflets 4–8, scattered, blades usually linear, rarely lanceolate, 30–80 × 1–20 mm, surfaces glabrous.

9–12 cm;

tendrils well developed;

stipules lanceolate, 15–25 × 4–10 mm, sometimes equal to distal leaflets;

leaflets 6–12, scattered, blades ovate to lanceolate, 25–50 × 10–20 mm, surfaces glabrous or pubescent.

5–8-flowered, 10–18 cm.

9–15-flowered, 6–10 cm.

8–15 mm;

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

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

ovary glabrous.

11–13 mm;

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

corolla orange to yellow-cream, banner erect, blade shorter than claw, wings equal to keel;

ovary glabrous.

30–50 × 4–8 mm.

40–70 × 4–6 mm.

= 14.