Flora of North America species comparison

narrowly winged, sprawling or climbing, basally branched 0–4 times, 3–6 dm.

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

1–3 cm;

tendrils well developed;

stipules linear, 10–20 × 2–5 mm, equal to smaller leaflets;

leaflets 2, blades linear, 15–60 × 2–8 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.

terminal, 1- or 2-flowered, 2–4 cm.

9–15-flowered, 6–10 cm.

7–10 mm;

calyx lobes subequal, linear-triangular, usually longer than tube;

corolla blue, 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 × 2–4 mm.

40–70 × 4–6 mm.

= 14.