Flora of North America species comparison

angled, erect to sprawling, basally branched 0–3 times, 1–4 dm.

angled, erect, sprawling, or climbing, often branched mid stem 1–4 times, 2–6 dm.

2–7 cm;

tendrils absent or mucronate;

stipules lanceolate, 7–12 × 2–5 mm, much smaller than leaflets;

leaflets 8–16, scattered, blades ovate to lanceolate, 5–15 × 3–10 mm, surfaces villous.

2–6 cm;

tendrils absent to well developed, 0–3 cm, usually not branched;

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

leaflets 4–8, often paired, blades ovate, 15–30 × 5–20 mm, surfaces glabrous, or linear, 30–70 × 1–10 mm, surfaces glabrous or pubescent.

1- or 2-flowered, 0.5–3 cm.

5–15-flowered, 2–7 cm.

8–12 mm;

calyx lobes unequal, lateral lobes linear-triangular, longer than tube;

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

ovary densely pubescent.

7–13 mm;

calyx lobes unequal, lateral lobes often linear-triangular, sometimes lanceolate, shorter than tube;

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

ovary glabrous.

15–20 × 4–5 mm.

40–60 × 4–7 mm.

= 14.

= 14.