Flora of North America species comparison

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

ascending or erect, clustered, branched, short-silky.

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 not leaflike, green to silvery, 5–17 mm;

petiole 2–5 cm;

leaflets 6–8, blades 20–80 × 2–7 mm, widest below middle, adaxial surface pubescent, hairs densely silver-silky to woolly.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

5–40 cm;

flowers ± whorled.

1–10 cm;

bracts persistent, straight, 2–4 mm.

2–8 cm;

bracts deciduous, 6–11 mm.

1–4 mm.

2–4 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.

10–14 mm;

calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 6–8 mm, adaxial lobe notched, 5–7 mm;

corolla lavender to blue, banner patch pale yellowish, banner usually glabrous abaxially, keel upcurved, glabrous, banner ovate, wings wide, covering keel tip.

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, pubescent.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

4–6, mottled olive brown, 5–6 mm.