Flora of North America species comparison

very short, tufted, branched.

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

cauline, crowded near base;

stipules well developed;

petiole 1–6 cm;

leaflets (3 or)5–9, blades 8–20 × 2–9 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.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

open, 15–50 cm;

flowers ± whorled or not.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

3–15 cm;

bracts deciduous, 8–10 mm.

0.3–1.5 mm.

5–10 mm.

6–8 mm;

calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot white or yellow, keel 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.

not undulate, 1 cm, thinly pilose to coarsely hirsute.

dark, 3–7 cm, sparsely hairy.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2, smooth.

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