Tragopogon dubius, Scop.

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 : 324

10. T. dubius Scop. , FI. Cam. ed. 2, 2: 95 (1772)

( T. major Jacq. ; inch T. dubius subsp. campestris (Besser) Hayek ).

Annual or biennial with a cylindrical rootstock. Stems 25-50 cm, often simple, glabrous. Leaves linear-lanceolate, subamplexicaul. Peduncles strongly inflated; involucral bracts (5—)8—12(— 18), exceeding ligules. Ligules yellow. Achenes 2-5-3 -5 cm, squamose; beak about as long as body. Pappus about as long as achene. In = 12. Europe, from N. France and C. Russia southwards. Au Bu Cz Ga Ge Gr He Hs Hu It Ju Lu Rm Rs (C, W, K, E) Tu [Be].

Plants with wide leaves, large capitula and 10—12(—18) involucral bracts have been called subsp. major (Jacq.) Vollmann , FI. Bayern 772 (1914), but are not sufficiently distinct to warrant recognition even at subspecific rank.