Flora of North America species comparison

broadly winged, sprawling or climbing, basally branched 1–5 times, 8–20 dm.

angled, erect or sprawling, basally branched 1–3 times, 0.5–1 dm.

2–5 cm, rachises broadly winged;

tendrils well developed, branched;

stipules lanceolate, 30–40 × 7–15 mm, at least 1/2 width of stem, much smaller than leaflets;

leaflets 2, blades lanceolate-elliptic, 30–120 × 7–50 mm, surfaces glabrous.

0.5–1 cm;

tendrils absent or reduced to flattened bristles;

stipules linear, 4–5 × 1–2 mm, ca. 1/2 length of leaflets;

leaflets (3 or)4(or 5), paired, blades lanceolate, 6–12 × 2–3 mm, surfaces finely villous.

5–15-flowered, 10–33 cm.

1- or 2-flowered, 1 cm.

15–20 mm;

calyx lobes unequal, lateral lobes linear-triangular, shorter than tube;

corolla purple, magenta, pink, or white, banner erect, blade longer than claw, wings equal to keel;

ovary densely glandular-pubescent, style rotated 90° from ovary axis.

7–8 mm;

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

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

ovary glabrous.

50–110 × 5–10 mm.

13–15 × 3–5 mm.

= 14.