Centaurea micrantha subsp. micrantha

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 : 277

(a) Subsp. micrantha :

Involucre 5-6 mm in diameter; appendages dark brown, the apex 0-5-1 mm, the fimbriae c. 1 mm. Pappus as long as achene. Throughout the range of the species.