Erica petrusiana E.G.H.Oliv. & I.M.Oliv.

Corolla shortly funnel-shaped/obconic with an open mouth, ±8.5-5.0 mm long, longitudinally ridged, dull yellow, almost glabrous (only a few minute stiff hairs) with no pustules, slightly sticky, not nipped in below mouth, lobes erect, not spreading. Erica petrusiana is closely related to the short-tubed subspecies of E. viscaria, but differs in the shape of the corolla with its open mouth. It shares this character with E. latiflora L.Bolus which has an even more open corolla with longer lobes. This latter relationship points to the problem in the genus of the long-tubed and short-tubed species being closely related, but placed very far apart in the current sectional system.