1 | Calyx glabrous or with a few sessile glands |
1' | Calyx distinctly glandular-pilose |
2 | Calyx-lobes obtuse or subacute, not tapering; corolla very small, incl. spur less than 10 mm long |
2' | Calyx-lobes tapering, acuminate; corolla incl. spur 10-16 mm long |
3 | Corolla violet-purple; inflorescence short, compact |
3' | Corolla creamy white; inflorescence lax, elongate |
4 | Corolla incl. spur 15-25 mm long |
4' | Corolla incl. spur shorter than 10 mm |
5 | Corolla yellow, exceeding the calyx; spur 2.5-3.5 mm long |
5' | Corolla blue or bluish, scarcely exceeding the calyx; spur less than 0.5 mm long |