Clinopodium vulgare subsp. vulgare

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 : 167

(a) Subsp. vulgare :

Calyx 7-9-5 mm; lower teeth 2-5-4 mm; upper teeth up to 2-5 mm. In = 20. Almost throughout the range o f the species, but absent from parts o f S. Europe.