Flora of North America species comparison

angled, sprawling to erect, basally branched 0–3 times, 2–8 dm.

winged, sprawling, basally branched 0–several times, 2–10 dm.

3–8 cm;

tendrils well developed, often branched;

stipules lanceolate, 8–12 × 2–5 mm, much smaller than leaflets;

leaflets 6–10, usually paired, blades ovate, 20–40 × 10–20 mm, surfaces glabrous.

0.8–3 cm, rachises narrowly winged;

tendrils well developed;

stipules linear, 5–10 × 1–3 mm, much smaller than leaflets;

leaflets 2, blades lanceolate to linear, 25–75 × 5–12 mm, surfaces glabrous.

2–5-flowered, 4–7 cm.

1- or 2-flowered, 4–15 cm.

15–20 mm;

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

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

ovary glabrous.

8–10 mm;

calyx lobes subequal, lateral lobes linear-triangular, longer than tube;

corolla blue to red, banner erect, blade 2 times as long as claw, wings equal to keel;

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

30–50 × 5–15 mm.

25–40 × 5–10 mm.

= 14.