Centaurea thracica, (Janka) Hayek

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 : 270

68. C. thracica (Janka) Hayek in Stoj. & Stefanov, Fl. Bälg. 1194 (1925)

( Serratula thracica Janka ).

Stems up to 50 cm, simple or sparingly branched. Leaves coriaceous, decurrent; lower runcinate-lyrate, with few triangular lobes, the terminal one hastate; upper oblong-lanceolate, with auriculate base, the uppermost surrounding the capitula. Involucre c. 20 mm in diameter; outer bracts ovate, the inner oblong-lanceolate; appendages fimbriate, with patent apical spine 2-5 mm. Florets yellow. Achenes 3 mm; pappus as long as or slightly longer than achene. E.part ofBalkan peninsula, S.E. Romania. Bu Gr Rm Tu.