Flora of North America species comparison

angled, sprawling or climbing, basally branched 0–3 times, 3–8 dm.

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

(2–)3–10 cm;

tendrils well developed;

stipules somewhat foliose, ovate-lanceolate, 15–35 × 5–20 mm, sometimes equal to distal leaflets;

leaflets (5 or)6(–8), usually paired, blades broadly ovate to lanceolate, (20–)25–65 × 10–35(–42) 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.

4–10(–13)-flowered, 3–12 cm.

1-flowered, 2–4 cm.

10–15 mm;

calyx lobes unequal, lateral lobes lanceolate, usually longer than tube;

corolla cream-white, banner erect, blade longer than 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.

30–70 × 4–7 mm.

15–30 × 5–7 mm.

= 14.

= 14.