Flora of North America species comparison

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

solitary, erect, slender, usually unbranched.

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;

stipules 7–9 mm;

petiole to 1 cm;

leaflets 6 or 7, blades 10–40 × 4–10 mm, adaxial surface glabrous.

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

flowers spirally arranged.

4–16 cm;

flowers ± whorled or not.

0–3.5 cm;

bracts persistent, straight, 2–5 mm.

2–6 cm;

bracts deciduous, 8–10 mm.

1–3.5 mm.

5–6 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.

8–10(–12) mm;

calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–5 mm, adaxial lobe 2-toothed, 3–8 mm;

corolla whitish to dull blue (at least in bud), often fading to pale yellow, banner glabrous abaxially, keel glabrous, tip sometimes exserted.

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

1.5–2.5 cm, white-hairy, dark when dry.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled or ridged.

3 or 4, 4–5 mm.