Flora of North America species comparison

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

ascending or erect, branched.

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 6–16 mm;

petiole 1–3 cm;

leaflets 6–9, blades 20–45 × 3–8 mm, adaxial surface tomentose, hairs silvery.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

5–16 cm;

flowers ± whorled.

1–10 cm;

bracts persistent, straight, 2–4 mm.

2–5 cm;

bracts deciduous, 5–9 mm.

1–4 mm.

2–5.5 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.

9–12 mm;

calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–7 mm, adaxial lobe 2-toothed, 4–7 mm;

corolla usually yellow, banner hairy abaxially, keel ± glabrous.

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

2–3 cm, strigose.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

3–5, tan, 3–5 mm.