Centaurea dracunculifolia, Dufour

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 : 291

177. C. dracunculifolia Dufour , Ann. Sci. Nat. 23: 157 (1831):

Perennial. Stems 20-60 cm, slender, simple or virgately branched, procumbent or ascending. Leaves sparsely lanate, minutely punctate, undivided, linear-lanceolate; lower entire or remotely denticulate; middle sessile, entire. Capitula solitary, small. Involucre 11-12x 6-8 mm, cylindric-obconical; appendages obovate-orbicular, wider than and covering the distinctly veined, broadly ovate bracts, with pale reddish-brown centre, the margin hyaline, lacerate-denticulate. Florets purple, the outer strongly radiate. Achenes c. 3 mm; pappus absent. 2n = 22. Saline grassland. 9 E. Spain, just extending to S. France. Ga Hs.