Flora of North America species comparison

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

broadly winged, sprawling or climbing, basally branched 1–5 times, 8–20 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.

2–5 cm, rachises broadly winged;

tendrils well developed, branched;

stipules lanceolate, 30–40 × 7–15 mm, at least 1/2 width of stem, much smaller than leaflets;

leaflets 2, blades lanceolate-elliptic, 30–120 × 7–50 mm, surfaces glabrous.

5–8-flowered, 10–18 cm.

5–15-flowered, 10–33 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.

15–20 mm;

calyx lobes unequal, lateral lobes linear-triangular, shorter than tube;

corolla purple, magenta, pink, or white, banner erect, blade longer than claw, wings equal to keel;

ovary densely glandular-pubescent, style rotated 90° from ovary axis.

30–50 × 4–8 mm.

50–110 × 5–10 mm.

= 14.

= 14.