Flora of North America species comparison

angled, sprawling or climbing, sometimes branched at flowering nodes, 2–6 dm.

not winged, erect or climbing, basally branched 1–several times, 2–6 dm.

5–9 cm;

tendrils usually well developed;

stipules lanceolate to linear, 8–12 × 1–5 mm, much smaller than leaflets;

leaflets 4–8, scattered, blades usually linear, rarely lanceolate, 30–80 × 1–20 mm, surfaces glabrous.

reduced to tendrils, unbranched or branched, 1–4 cm;

stipules ovate, 10–35 × 10–25 mm, base hastate, margins entire;

leaflets 0.

5–8-flowered, 10–18 cm.

1-flowered, 2–4 cm.

8–15 mm;

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

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

ovary glabrous.

6–10 mm;

calyx lobes equal, lateral lobes broadly lanceolate, longer than tube;

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

ovary glabrous.

30–50 × 4–8 mm.

15–30 × 5–7 mm.

= 14.

= 14.