Flora of North America species comparison

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

very short, densely tufted, 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.

cauline, densely tufted or crowded near base;

free blades of stipules reduced, 1 mm;

petiole 0.4–1.5 cm;

leaflets (3 or)5, blades 2–7 × 1–1.5 mm, adaxial surface villous.

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

flowers spirally arranged.

flowers solitary or paired, axillary.

0–3.5 cm;

bracts persistent, straight, 2–5 mm.

1.5–4 mm;

bracts persistent, 1 mm.

1–3.5 mm.

1 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.

4–5 mm;

calyx 2.5–3 mm, abaxial lobe shallowly cleft, 2–2.5 mm, adaxial lobe 2-toothed, 0.5–1 mm;

corolla banner white, wings and keel purplish, keel glabrous.

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

0.6–1 cm, pilose.

persistent, disclike, sessile.

persistent, disclike, sessile.

2, wrinkled or ridged.

1 or 2.