Asperula taurina subsp. taurina, L., L.

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 : 12

(a) Subsp. taurina :

Corolla grey-brown or brown when dry. Anthers pale lilac to violet. Throughout the range of the species except Hungary and Romania, and possibly Albania and Bulgaria.