Flora of North America species comparison

solitary, erect, slender, usually unbranched.

cauline;

stipules 7–9 mm;

petiole to 1 cm;

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

4–16 cm;

flowers ± whorled or not.

2–6 cm;

bracts deciduous, 8–10 mm.

5–6 mm.

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.

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

deciduous, petiolate.

3 or 4, 4–5 mm.