Flora of North America species comparison

angled, sprawling or climbing, basally branched 0–3 times, 3–8 dm.

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

(2–)3–10 cm;

tendrils well developed;

stipules somewhat foliose, ovate-lanceolate, 15–35 × 5–20 mm, sometimes equal to distal leaflets;

leaflets (5 or)6(–8), usually paired, blades broadly ovate to lanceolate, (20–)25–65 × 10–35(–42) 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.

4–10(–13)-flowered, 3–12 cm.

1- or 2-flowered, 4–15 cm.

10–15 mm;

calyx lobes unequal, lateral lobes lanceolate, usually longer than tube;

corolla cream-white, 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.

30–70 × 4–7 mm.

25–40 × 5–10 mm.

= 14.

= 14.