Flora of North America species comparison

angled, sprawling or climbing, basally branched 0–3 times, 4–10 dm.

broadly winged, climbing, basally branched 1–3 times, 8–20 dm.

6–18 cm;

tendrils well developed;

stipules lanceolate to linear, 10–20 × 2–10 mm, much smaller than distal leaflets (less than 1/4 width of distal leaflets);

leaflets 8–14, scattered, blades ovate to lanceolate, 25–70 × 10–35 mm, surfaces glabrous or pubescent.

2–4 cm, rachises winged as the stem;

tendrils well developed;

stipules lanceolate, 15–25 × 5–10 mm, smaller than leaflets;

leaflets 2, blades ovate or obovate to lanceolate, 25–60 × 5–35 mm, surfaces glabrous.

5–20-flowered, 6–20 cm.

1–3-flowered, 4–20 cm.

10–15 mm;

calyx lobes unequal, lateral lobes linear-triangular or lanceolate, shorter to longer than tube;

corolla blue-purple to rose, banner erect, blade equal to claw, wings equal to keel;

ovary glabrous or pubescent.

20–30 mm;

calyx lobes equal, lateral lobes deltate, usually shorter than tube;

corolla rose-purple, banner erect, blade longer than claw, wings longer than keel;

ovary glabrous, style rotated 90° from ovary axis.

20–50 × 3–7 mm.

70–100 × 8–12 mm, narrowly winged on abaxial suture.

= 14.