Flora of North America species comparison

broadly winged, climbing, basally branched 1–3 times, 8–20 dm.

not winged, erect or sprawling, basally branched 1–several times, 1–8 dm.

2–4 cm, rachises winged as the stem;

tendrils well developed;

stipules lanceolate, 15–25 × 5–10 mm, smaller than leaflets;

leaflets 2, blades ovate or obovate to lanceolate, 25–60 × 5–35 mm, surfaces glabrous.

phyllodic;

tendrils absent;

stipules filiform-linear, 1–2 × 1 mm, much smaller than phyllode, base semisaggitate;

leaflets 0;

phyllodes flattened, linear, and grasslike, 80–140 × 4–10 mm, glabrous.

1–3-flowered, 4–20 cm.

1- or 2-flowered, 6–10 cm.

20–30 mm;

calyx lobes equal, lateral lobes deltate, usually shorter than tube;

corolla rose-purple, banner erect, blade longer than claw, wings longer than keel;

ovary glabrous, style rotated 90° from ovary axis.

8–10 mm;

calyx lobes equal, lateral lobes deltate, equal to tube;

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

ovary glabrous or pubescent.

70–100 × 8–12 mm, narrowly winged on abaxial suture.

30–60 × 2–4 mm.

= 14.

= 14.