Cynara alba, Boiss. ex DC.

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 : 248

2. C. alba Boiss. ex DC. , Prodr. 7: 304 (1838).

Stems 40-70 cm, floccose-lanate. Leaves sparsely and shortly tomentose to lanate, glabrescent, with a distinct reticulum of veins beneath; segments lanceolate, deeply spinose-dentate; basal leaves up to 35 x 32 cm, petiolate, with spines c. 5 mm, the cauline smaller, sessile, with spines 7-20 mm. Involucre 20-40 mm, ovoid; involucral bracts pale green, the outer spinose, recurved, the middle with an ovate appendage tapering into an erecto-patent spine 20-25 x 5-7 mm. Corolla white. Dry hillsides. • 5. Spain. Hs.