Flora of North America species comparison

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

not winged, erect, sprawling or climbing, basally branched 1–several times, 2–5 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.

0.5–1.5 cm;

tendrils bristlelike to 4 cm, often unbranched;

stipules linear, 10–15 × 2–10 mm, much smaller than leaflets;

leaflets 2, blades linear, 20–90 × 2–10 mm, surfaces glabrous.

4–10(–13)-flowered, 3–12 cm.

1-flowered, 1–2 cm, prolonged beyond flower into a bristle.

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 subequal, lateral lobes lanceolate, longer than tube;

corolla reddish orange, banner erect, blade longer than or equal to claw, wings equal to keel;

ovary glabrous.

30–70 × 4–7 mm.

40–60 × 4–6 mm, longitudinal venation prominent.

= 14.

= 14.