Flora of North America species comparison

erect or ascending, very short, tufted or spreading, branched.

solitary, erect, slender, usually unbranched.

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

leaflets 7–11, blades 10–30 × 4–10 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.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

4–16 cm;

flowers ± whorled or not.

1–10 cm;

bracts persistent, straight, 2–4 mm.

2–6 cm;

bracts deciduous, 8–10 mm.

1–4 mm.

5–6 mm.

4.5–7 mm;

calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft;

corolla dark blue-purple or whitish with blue tip, banner spot white becoming yellow, keel blunt, 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.

undulate, 1.5–2 cm, not constricted between seeds, ciliate with long, dense hairs, sides with short, inflated hairs becoming scaly on drying.

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

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

3 or 4, 4–5 mm.