Flora of North America species comparison

narrowly winged, sprawling or climbing, basally branched 0–4 times, 3–6 dm.

angled to narrowly winged, sprawling, often branched mid stem (at or just proximal to flowering nodes), 3–10 dm.

1–3 cm;

tendrils well developed;

stipules linear, 10–20 × 2–5 mm, equal to smaller leaflets;

leaflets 2, blades linear, 15–60 × 2–8 mm, surfaces glabrous.

6–10 cm;

tendrils well developed;

stipules lanceolate to linear, 10–20 × 1–8 mm, much smaller than leaflets;

leaflets 8–12, usually paired, sometimes scattered, ovate to lanceolate, 20–45 × 15–25 mm, glabrous.

terminal, 1- or 2-flowered, 2–4 cm.

7–15-flowered, 5–15 cm.

7–10 mm;

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

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

ovary glabrous.

12–14 mm;

calyx lobes unequal, lateral lobes linear-triangular, shorter than or equal to tube;

corolla cream-white, banner erect, blade longer than claw, wings equal to keel;

ovary glabrous.

30–50 × 2–4 mm.

40–70 × 4–9 mm.

= 14.

= 14.