Knautia drymeia subsp. drymeia

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 : 62

(d) Subsp. drymeia ( K.pannonica (Jacq.) Weitst. , non Heuffel): Like subsp. (a) but rosette-leaves and stems with sparse hairs; cauline leaves ovate to ovate-lanceolate, crenate-serrate, dark green above, subpubescent to glabrous beneath. 2л = 40 (38, 42-44). From S.E. Germany to Macedonia.