Flora of North America species comparison

angled to narrowly winged, erect, sprawling, or climbing, basally branched 0–4 times, 1–10 dm.

angled, erect or sprawling, basally branched 0–2 times, 1.5–3 dm.

3–15 cm;

tendrils usually well developed, branched or unbranched;

stipules sagittate-ovate, 7–35 × 7–30 mm, as large as basal leaflets;

leaflets 6–12, usually scattered, blades ovate to lanceolate, 15–55 × 5–35 mm, surfaces glabrous throughout or pubescent abaxially.

1–4 cm;

tendrils bristlelike, usually less than 1 cm;

stipules linear to lanceolate, 10–30 × 1–5 mm, nearly equal to leaflets;

leaflets 8–12, often paired, blades lanceolate to linear, 10–35 × 1–5 mm, surfaces glabrous or pubescent.

4–9-flowered, 4–15 cm.

2–6-flowered, 4–11 cm.

12–29 mm;

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

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

ovary eglandular and glandular-pubescent.

16–22 mm;

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

corolla usually violet to magenta, sometimes white, banner erect, blade longer than claw, wings 4–5 mm longer than keel;

ovary glabrous.

35–65 × 6–12 mm.

35–50 × 8–12 mm, stipitate.