Centaurea phrygia subsp. rarauensis, (Prodan) Dostal

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 294

(i) Subsp. rarauensis (Prodan) Dostál , loc. cit. (1976)

( C. rarauensis Prodan ):

Stems 30-50 cm, simple, rarely branched. Leaves arachnoid-tomentose. Capitula solitary. Involucre 18 x 12 mm, ovoid-globose; appendages mostly covering bracts, those of the middle bracts dark brown, broadly triangular, attenuate into a filiform, subulate, erect or somewhat recurved acumen, appendages of inner bracts exserted. • N. & C. Romania.

C. pectinata vаr. fuscata Rouy [ C. fuscata Jordan , non Desf.), from S. France, is like 188(a) but has the involucre c. 15 x 10 mm, the appendages of the middle bracts narrowly triangular and blackish-brown, those of the inner bracts not exserted, and the outer florets scarcely radiate. It perhaps originated as a hybrid between 186 or 187 and 193.

It is possible that two elements may be distinguishable within subsp. (f). One, corresponding with C. pseudophrygia C. A. Meyer sensu stricto, has the involucre 12-15 mm in diameter and narrow appendages and occurs from the E. Carpathians to the S. part of the U.S.S.R.; the other, which has been called C. phrygia var. elatior Gaudin , has the involucre 18-20 mm in diameter and wider appendages and occurs in the more central and westerly parts of the range of the subspecies.