Campanula albanica subsp. albanica

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 90

(a) Subsp. albanica :

Cauline leaves narrowly lanceolate to linear, mostly acute. Calyx-teeth up to 12 mm. 2л = 34. Throughout the range of the species.