Flora of North America species comparison

very short, tufted, branched.

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

cauline, crowded near base;

stipules well developed;

petiole 1–6 cm;

leaflets (3 or)5–9, blades 8–20 × 2–9 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.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

5–40 cm;

flowers ± whorled.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

2–8 cm;

bracts deciduous, 6–11 mm.

0.3–1.5 mm.

2–4 mm.

6–8 mm;

calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot white or yellow, keel 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.

not undulate, 1 cm, thinly pilose to coarsely hirsute.

2–3 cm, pubescent.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2, smooth.

4–6, mottled olive brown, 5–6 mm.