Flora of North America species comparison

narrowly to broadly winged, sprawling or climbing, basally branched 0–4 times, 2–10 dm.

angled, erect, branched 0–2 times basally or from proximal nodes, 0.5–2 dm.

1–6 cm;

tendrils well developed;

stipules ovate-lanceolate to linear, 5–25 × 1–10 mm, much smaller than leaflets;

leaflets 4–8, paired, blades lanceolate to linear, 15–75 × 2–20 mm, surfaces glabrous, glabrate, or pubescent.

1–2 cm;

tendrils reduced to bristles;

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

leaflets 4 or 6, paired, blades ovate to obovate, 10–25 × 5–10 mm, surfaces glabrous.

2–7-flowered, 3–15 cm.

2–4-flowered, 4–6 cm.

10–15 mm;

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

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

ovary glandular-pubescent.

14–17 mm;

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

corolla bicolored lavender and white, banner erect, blade longer than claw, wings longer than keel, 1–3 mm;

ovary glabrous.

25–60 × 4–8 mm.

25–30 × 8–10 mm, stipitate.

= 14.