Flora of North America species comparison

narrowly to broadly winged, sprawling or climbing, basally branched 0–4 times, 2–10 dm.

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

1–6 cm;

tendrils well developed;

stipules ovate-lanceolate to linear, 5–25 × 1–10 mm, much smaller than leaflets;

leaflets 4–8, paired, blades lanceolate to linear, 15–75 × 2–20 mm, surfaces glabrous, glabrate, or pubescent.

reduced to tendrils, unbranched or branched, 1–4 cm;

stipules ovate, 10–35 × 10–25 mm, base hastate, margins entire;

leaflets 0.

2–7-flowered, 3–15 cm.

1-flowered, 2–4 cm.

10–15 mm;

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

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

ovary glandular-pubescent.

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.

25–60 × 4–8 mm.

15–30 × 5–7 mm.

= 14.

= 14.