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 3–5 times, 1–3 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.

3–4 cm;

tendrils well developed;

stipules linear, 5–10 × 1–2 mm, much smaller than leaflets;

leaflets 4 or 6, paired, blades linear, 15–50 × 1–5 mm, surfaces sparsely pubescent.

4–9-flowered, 4–15 cm.

2 or 3-flowered, 3–6 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.

8–10 mm;

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

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

ovary glabrous.

35–65 × 6–12 mm.

40–70 × 4–9 mm.