Centaurium erythraea subsp. rumelicum, (Velen.) Melderis

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 : 58

(c) Subsp. rumelicum (Velen.) Melderis , loc. cit. (1972)

( Erythraea centaurium subsp. rumelica Velen. ):

Stem slender, branched in the upper part. Middle cauline leaves linear-oblong, acute. Flowers deep pinkish-purple, in a lax, many-flowered cyme. Corolla-lobes usually 2-5-5 mm. Calyx c. £ as long as the corolla-tube. In = 20. C. & E. parts o f Mediterranean region.