Flora of North America species comparison

erect or ascending, very short, tufted or spreading, branched.

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

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

leaflets 7–11, blades 10–30 × 4–10 mm, adaxial surface glabrous.

cauline;

stipules 7–15 mm;

petiole 3–5 cm;

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

several–many-flowered, 3–14 cm;

flowers spirally arranged.

open, 15–50 cm;

flowers ± whorled or not.

1–10 cm;

bracts persistent, straight, 2–4 mm.

3–15 cm;

bracts deciduous, 8–10 mm.

1–4 mm.

5–10 mm.

4.5–7 mm;

calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft;

corolla dark blue-purple or whitish with blue tip, banner spot white becoming yellow, keel blunt, glabrous.

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.

undulate, 1.5–2 cm, not constricted between seeds, ciliate with long, dense hairs, sides with short, inflated hairs becoming scaly on drying.

dark, 3–7 cm, sparsely hairy.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

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