Flora of North America species comparison

ascending or erect, branched or unbranched.

decumbent, ascending, or erect, branched, dark brown to red, usually hollow.

cauline;

petiole flattened and leafletlike, 3–10 cm;

leaflets 5–8, blades 20–40 × 2–5 mm, apex usually truncate, adaxial surface glabrous.

cauline;

stipules 7–15 mm;

petiole 3–5 cm;

leaflets 5–9, blades 20–40 × 4–9 mm, adaxial surface glabrous.

6–35 cm;

flowers loosely spirally arranged.

open, 15–50 cm;

flowers ± whorled or not.

3–10 cm;

bracts persistent, 2–5 mm.

3–15 cm;

bracts deciduous, 8–10 mm.

2–4 mm.

5–10 mm.

8–13 mm;

calyx 3–4 mm, lobes ± equal, abaxial lobe entire or shallowly cleft, 2.5–3 mm, adaxial lobe deeply cleft, 1.5–2 mm;

corolla banner and wings magenta, banner spot white or yellowish, becoming dark magenta, keel stout, blunt, lower and upper margins ciliate from claw to middle.

12–16 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire or ± 3-toothed, 7–9 mm, adaxial lobe 2-toothed, 7–8 mm;

corolla violet, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate claw to tip.

±3 cm, pubescent.

dark, 3–7 cm, sparsely hairy.

deciduous, petiolate.

deciduous, petiolate.

6–8.

7 or 8, mottled brown with black line, 3–4 mm.