Flora of North America species comparison

angled, erect, basally branched 0–2 times, 2–5 dm.

angled, erect, sprawling, or climbing, basally branched 1–several times, 1–5 dm.

2–4 cm;

tendrils simple or branched, sometimes prehensile;

stipules linear, 5–15 × 1–2 mm, much smaller than leaflets;

leaflets 6 or 8, scattered, blades ovate to lanceolate, 15–45 × 4–10 mm, surfaces glabrous throughout or puberulent abaxially.

0.3–1 cm;

tendrils reduced to bristles on proximal leaves, well developed distally;

stipules lanceolate, 10–20 × 2–4 mm, as wide as leaflets;

leaflets 2, blades linear, 20–70 × 1–4 mm, surfaces glabrous.

2–4-flowered, 7–12 cm.

1-flowered, 2–7 cm, prolonged beyond flower into tendril-like structure.

18–20 mm;

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

corolla blue-purple, banner erect, blade longer than claw, wings equal to keel (held above keel);

ovary glabrous.

8–10 mm;

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

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

ovary glabrous.

40–50 × 8–10 mm, short-stipitate.

20–40 × 3–5 mm, with indistinct reticulate venation.

= 14.

= 14.