Flora of North America species comparison

angled, sprawling, basally branched 0–3 times, 4–30 dm.

not winged, sprawling, branched along trailing stems several times, 2–6 dm.

5–8 cm;

tendrils well developed;

stipules lanceolate to linear, 10–20 × 2–8 mm, much smaller than leaflets;

leaflets 6–10, scattered, blades ovate to linear, 20–40 × 3–15 mm, surfaces glabrous throughout or sparsely pubescent abaxially.

0.5–2 cm;

tendrils well developed;

stipules filiform-linear, 5–10 × 1–3 mm, much smaller than leaflets;

leaflets 2, blades lanceolate, 10–40 × 5–15 mm, surfaces glabrous.

6–10-flowered, 4–16 cm.

4–6-flowered, 6–15 cm.

25–30 mm;

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

corolla deep wine red, banner reflexed against calyx tube, blade much longer than claw, wings equal to keel;

ovary glandular-pubescent.

8–12 mm;

calyx lobes unequal, lateral lobes linear-triangular, equal to tube;

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

ovary glabrous, style rotated 90° from ovary axis.

50–80 × 5–9 mm.

20–30(–40) × 3–6 mm.

= 14.

= 14.