Flora of North America species comparison

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

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

2–7-flowered, 3–15 cm.

1–3-flowered, 4–20 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.

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.

25–60 × 4–8 mm.

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

= 14.

= 14.