Flora of North America species comparison

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

± prostrate or ascending, branched.

cauline, often crowded near base;

stipules well developed;

petiole 1–9 cm;

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

basal (clustered near base);

stipules 4–5 mm;

petiole 2–4.5 cm;

leaflets 6–8, blades 10–20 × 2–4 mm, adaxial surface pubescent.

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

flowers spirally arranged.

2–7 cm;

flowers in few whorls, widely separated.

0–3.5 cm;

bracts persistent, straight, 2–5 mm.

5–10 cm;

bracts usually deciduous, 4–5 mm.

1–3.5 mm.

2–4 mm.

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.

9–12 mm;

calyx bulge or spur 0–1 mm, abaxial lobe obscurely 3-toothed, 5–6 mm, adaxial lobe notched, 4–5 mm;

corolla ± violet, banner patch yellow, banner usually hairy abaxially, lower keel margins glabrous, adaxial margin ciliate.

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

2–3 cm, pilose.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled or ridged.

1 or 2.