Teucrium, (Hill) Schreber. Perennial

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 : 131

Sect. scorodonia (Hill) Schreber. Perennial herbs or dwarf shrubs. Inflorescence secund, raceme-like. Calyx campanulate, 2-lipped; tube curved, gibbous at base; the upper tooth usually wider than the others.