Solanum luteum subsp. luteum

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 : 198

(a) Subsp. luteum

( S. villosum Miller ):

Plant villous, the hairs usually patent, glandular; stems rounded, with smooth ridges. 2« = 48. Throughout the range o f the species, but most frequent in warm, dry areas.