Flora of North America species comparison

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

erect or ascending, clustered, unbranched or branched distally, stout.

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 10–15 mm;

petiole 2–25 cm;

leaflets 8–11, blades (30–)60–120(–150) × 3–15 mm, abaxial surface silky, slightly less so abaxially.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

12–40 cm, loose to dense;

flowers whorled.

1–10 cm;

bracts persistent, straight, 2–4 mm.

4–10 cm;

bracts early deciduous to persistent, 10–18 mm.

1–4 mm.

4–12 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.

(13–)15–18 mm;

calyx sometimes somewhat bulged and asymmetrical, abaxial lobe entire or notched, 7–8 mm, adaxial lobe shallowly notched, 6–7 mm;

corolla bright yellow, rarely pale purple, keel falcate, banner glabrous or hairy abaxially, upper keel margins densely ciliate.

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

3–4.5 cm, tomentose.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

4–7, pinkish brown to dull reddish brown, 6–7 mm.