Flora of North America species comparison

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

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

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.

2–7-flowered, 3–15 cm.

1- or 2-flowered, 4–15 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.

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.

25–60 × 4–8 mm.

25–40 × 5–10 mm.

= 14.

= 14.