Salvia nemorosa subsp. nemorosa

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 : 191

(a) Subsp. nemorosa :

Calyx with a very fine, closely appressed indumentum; corolla 8-12 mm. Throughout the range o f the species except E. part o f U.S.S.R.