Flora of North America species comparison

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

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

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.

2–7-flowered, 3–15 cm.

7–15-flowered, 5–15 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.

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.

25–60 × 4–8 mm.

40–70 × 4–9 mm.

= 14.

= 14.