Flora of North America species comparison

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

basally branched or unbranched.

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

leaflets 7–11, blades 10–30 × 4–10 mm, adaxial surface glabrous.

basal;

petiole 2–12 cm;

leaflets 5–9, blades bright green, 8–24 × 3–10 mm, adaxial surface glabrous.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

4–25 cm;

flowers spirally arranged.

1–10 cm;

bracts persistent, straight, 2–4 mm.

hollow, 6–15 cm;

bracts persistent, straight, 2–4 mm, tips sparsely ciliate.

1–4 mm.

3–7 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.

7–10 mm;

calyx lobes sometimes ciliate at tips, abaxial lobe entire, 4–5 mm, adaxial lobe rounded or shallowly 2-toothed, 3–3.5 mm;

corolla deep blue-purple, banner spot white or yellow becoming magenta, 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.

1.5–2.5 cm, adaxial suture undulate and ciliate with long dense hairs, sides with a few short hairs becoming scaly on drying.

persistent, disclike, sessile.

persistent, disclike, sessile.

2, wrinkled.

2–6, ridged.