Flora of North America species comparison

angled, erect to sprawling, basally branched 0–3 times, 1–4 dm.

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

2–7 cm;

tendrils absent or mucronate;

stipules lanceolate, 7–12 × 2–5 mm, much smaller than leaflets;

leaflets 8–16, scattered, blades ovate to lanceolate, 5–15 × 3–10 mm, surfaces villous.

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.

1- or 2-flowered, 0.5–3 cm.

4–6-flowered, 6–15 cm.

8–12 mm;

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

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

ovary densely 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.

15–20 × 4–5 mm.

20–30(–40) × 3–6 mm.

= 14.

= 14.