Urospermum picroides, (L.) 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 : 308

2. U. picroides (L.) Scop , ex F. W. Schmidt, op. cit. 275 (1795).

Annual. Stem 30-45 cm, long-hispid and spinulose. Leaves 40-140 x 10-50 mm, hispid or spinulose at least on the veins beneath; lower obovate-oblong, pinnatifid or dentate, with winged petiole; upper ovate to linear, acute, more or less dentate, auriculate-amplexicaul. Capitula up to 4 cm in diameter, 1-9 on long peduncles thickened at the apex. Involucral bracts 13-22 x 5-8 mm, ovate-lanceolate, long-acuminate, hispid and spinulose. Ligules pale yellow. Body of achene 5-6-5 mm, more or less oblong but swollen distally, with short, obtuse projections; beak 6-8 mm, slender, cylindrical, shortly hairy; pappus white. 2/2= 10. Cultivated ground, dry grassland and waste places. Mediterranean region and S. W. Europe. Al Az BI Co Cr Ga Gr Hs It Ju Lu Sa Si Tu.