Flora of North America species comparison

narrowly to broadly winged, sprawling or climbing, basally branched 0–4 times, 2–10 dm.

broadly winged, sprawling or climbing, basally branched 1–3 times, 6–20 dm.

1–6 cm;

tendrils well developed;

stipules ovate-lanceolate to linear, 5–25 × 1–10 mm, much smaller than leaflets;

leaflets 4–8, paired, blades lanceolate to linear, 15–75 × 2–20 mm, surfaces glabrous, glabrate, or pubescent.

2–4 cm, rachises winged;

tendrils well developed, branched;

stipules linear, 10–30 × 1–3 mm, less than 1/2 width of stem, much smaller than leaflets;

leaflets 2, blades linear, 20–150 × 4–24 mm, surfaces glabrous.

2–7-flowered, 3–15 cm.

3–10-flowered, 9–27 cm.

10–15 mm;

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

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

ovary glandular-pubescent.

12–17 mm;

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

corolla red-purple, banner erect, blade longer than claw, wings equal to keel;

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

25–60 × 4–8 mm.

30–75 × 5–10 mm.

= 14.

= 14.