Verbascum chaixii subsp. chaixii

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 : 216

(a) Subsp. chaixii :

Basal leaves usually slightly lobed towards the base, greyish-tomentose beneath; upper cauline leaves remotely dentate. Filaments of lower stamens glabrous for a short distance below the anther. Corolla 15-22 mm in diameter. • S. Europe, from Spain to Jugoslavia.