Sideritis montana subsp. montana

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 143

(a) Subsp. montana

(inch S. comosa (Rochel) Stankov ):

Sparsely to moderately densely villous-lanate. Corolla black or brownish-black, usually with a yellow lower lip; middle lobe of lower lip 1-2 mm; tube pubescent to villous. 2n = 16. Almost throughout the range of the species except Spain.