Flora of North America species comparison

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

narrowly winged, erect to climbing, basally branched 0–several times, 2–8 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.

9–13 cm;

tendrils well developed;

stipules lanceolate, 10–30 × 3–15 mm, sometimes equal to distal leaflets;

leaflets 9–12, scattered, blades lanceolate, 30–50 × 5–15 mm, surfaces glabrous.

5–8-flowered, 10–18 cm.

8–12-flowered, 7–10 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.

9–12 mm;

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

corolla cream-white, banner erect, blade longer than claw, wings equal to keel;

ovary glabrous.

30–50 × 4–8 mm.

30–40 × 3–5 mm.

= 14.

= 14.