Flora of North America species comparison

very short, tufted, branched.

short and tufted or erect, branched from base or near middle.

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, often crowded near base;

stipules well developed;

petiole 1–9 cm;

leaflets 5–9, blades 10–40 × 5–10 mm, adaxial surface glabrous.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

8–12-flowered, 2–11 cm, shorter than or slightly exceeding foliage;

flowers spirally arranged.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

0–3.5 cm;

bracts persistent, straight, 2–5 mm.

0.3–1.5 mm.

1–3.5 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.

5–12 mm;

calyx abaxial lobe entire, 5–6 mm, adaxial lobe cleft, 2.5–4 mm;

corolla vivid blue, sometimes paler or white, sometimes bicolored, banner spot white or yellowish, keel glabrous.

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

1.5 cm, constricted between seeds, thinly pilose to coarsely hirsute.

persistent, disclike, sessile.

persistent, disclike, sessile.

1 or 2, smooth.

2, wrinkled or ridged.