Orobanche rapum-genistae subsp. rigens

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 : 293

(c) Subsp. rigens (Loisel.) P. Fourn. , loc. cit. (1937)

( O. rigens Loisel. ):

Not more than 40 cm. Bracts shorter than to slightly exceeding corolla; bracts, corolla, style and filaments glabrous or subglabrous; corolla dark red, the upper lip shortly 2-lobed, more or less erect. Corse, Sardegna,?Sicilia.