| 1 | Corolla blue with conspicuous, darker, reticulate venation, 10-15 mm diam.; stems adpressed-pubescent; nutlets 7-8 x 5-7 mm |
| 1' | Corolla uniformly violet, purple, pink or red, not conspicuously reticulate-veined, 4-8 mm diam.; stems loosely clothed with a spreading or subadpressed hairs; nutlets 4-6 x 3-5 mm |
| 2 | Corolla 6-8 mm diam., violet or purple; basal leaves marcescent, 5-15 cm long, 1-4 cm wide; inflorescence 2-6-branched |
| 2' | Corolla about 4 mm diam., pink or brick-red; basal leaves persistent, 2-5 cm long, 0.5-1 cm wide; inflorescence usually bifurcate |
