Tragopogon porrifolius subsp. porrifolius

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 : 323

(a) Subsp. porrifolius (inch subsp. sativus (Gaterau) Br.-Bl. , T. eriospermus Ten. ): Glabrous. Stems 30-125 cm. Ligules almost as long as involucral bracts, lilac to reddish-purple. Beak abruptly widened into body of achene. 2л = 12. Perhaps native in the C. & E. Mediterranean region', cultivated throughout a large part of Europe and widely naturalized.