Teucrium flavum subsp. gymnocalyx

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 : 133

(d) Subsp. gymnocalyx Rech. fil. , loc. cit. (1941):

Stems slender, often glabrescent. Leaves 10-20 mm, glabrous, glaucous beneath. Calyxc. 7 mm; teeth nearly as long as tube. • S.E. Greece.