| 1 | Inflorescence (incl. flowers) viscid-hairy by patent capitate-glandular hairs. Leaves not glabrous. Corolla tube gradually funnel-shaped widened, straight, Stamens glabrous at base. Capsule not 4-ridged. |
| 2 | Leaflets 0-5 mm stalked, base cuneate-attenuate. Capsule faintly 3-ridged on each valve, c. 15-18 mm ø, septum 8-13 mm ø. Calyx campanulate, 5-7 mm. Corolla dull purple, yellow-streaked within, c. 3 cm (stretched); lobes crenulate; tube c. 1¾ cm. Filaments towards the insertion with small granular glands |
| 2' | Leaflets 5-11 mm stalked, rounded to subcordate at the base. Capsule only with 1 median ridge on each valve, 8-12 mm ø, septum 6-9 mm ø. Calyx ± cylindric, 8-12 mm. Corolla pale lilac, 6-7 cm; lobes deeply fringed-laciniate; tube c. 4 cm. Filaments glabrous |
| 2'' | Inflorescence and leaves glabrous (or very rarely minutely puberulous). Corolla c. 3 cm, suddenly widened and curved above the basal tube, yellowish, the limb with reddish veins and markings, lobes crenulate. Throat and base of filaments densely hairy. Leaflets 5-15 mm stalked, long-acuminate. Calyx campanulate, 4-5 mm. Capsule 4-ridged, 8-10 mm ø; septum 4-5 mm ø. |
