Flora of North America species comparison

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

decumbent to erect, clustered, 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.

cauline, clustered near base or not;

stipules 6–20 mm;

petiole 1–8(–12) cm;

leaflets 6–10, blades 10–45 × 4–18 mm, surfaces hairy.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

4–40 cm, rachis usually deciduous or semideciduous;

flowers usually spirally arranged or loosely whorled.

1–10 cm;

bracts persistent, straight, 2–4 mm.

5–13 cm;

bracts deciduous, 4–24 mm.

1–4 mm.

3–10 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.

10–18 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 6–10 mm, adaxial lobe deeply divided, 6–8 mm;

corolla violet to lavender, patch usually yellow, rarely white, turning purple, banner usually hairy abaxially, rarely glabrous, keel usually unlobed proximally, adaxial margin usually ciliate middle to tip, abaxial margins glabrous.

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

3–5 cm, hairy.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

4–9, mottled tan, 4–6 mm.