Flora of North America species comparison

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

not winged, erect, sprawling or climbing, basally branched 1–several times, 2–5 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.

0.5–1.5 cm;

tendrils bristlelike to 4 cm, often unbranched;

stipules linear, 10–15 × 2–10 mm, much smaller than leaflets;

leaflets 2, blades linear, 20–90 × 2–10 mm, surfaces glabrous.

2–7-flowered, 3–15 cm.

1-flowered, 1–2 cm, prolonged beyond flower into a bristle.

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 subequal, lateral lobes lanceolate, longer than tube;

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

ovary glabrous.

25–60 × 4–8 mm.

40–60 × 4–6 mm, longitudinal venation prominent.

= 14.

= 14.