Cirsium lacaitae, Petrak

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 : 235

8. C. lacaitae Petrak , Österr. Bot. Zeitschr. 64: 456 (1914).

Biennial (60-) 100-150 cm. Leaves sparsely arachnoid-hairy to -lanate or rarely glabrescent beneath; lobes linear to linearlanceolate, with strong apical spine 4-13 mm. Capitula few, in a lax corymb, with 1-4 subtending leaves shorter than capitulum. Involucre 30-40 x 30-45(-50) mm, sparsely arachnoid-hairy to subglabrous (rarely villous); bracts erecto-patent to suberect; middle somewhat widened to the purple, sparsely denticulate- ciliate or weakly spinescent apex, with apical spine 2-5 mm. Corolla 29-35 mm, purple; tube longer than limb. Achenes 5-6 mm; pappus 25-30 mm. • S. Italy (hills N. of Amalfi). It.