Flora of North America species comparison

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

erect, usually branched, sometimes unbranched.

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

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

cauline;

petiole 3–7 cm;

leaflets 7–9, blades 20–50 × 3–5 mm, adaxial surface sparsely pubescent.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

10–25 cm;

flowers usually whorled, sometimes spirally arranged.

1–10 cm;

bracts persistent, straight, 2–4 mm.

5–8 cm;

bracts deciduous, 8–10 mm.

1–4 mm.

4–5 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.

10–12 mm;

calyx 6–10 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft;

corolla blue, banner spot white, upper keel margins with few cilia near apex, banner as wide as long or wider.

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

3–6 × 0.8–1 cm, densely pubescent.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

6–8.