Trifolium medium subsp. medium

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 170

(a) Subsp. medium :

Stems (10—)30—45 cm, appressed-hairy or glabrescent above; leaflets 20-50 x 9-20 mm; calyx-tube glabrous or glabrescent, 10-veined; upper 4 calyx-teeth not longer than the tube. Throughout the range of the species, possibly excepting Greece.