Ptilostemon strictus, (Ten.) W. Greuter

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 : 243

1. P. strictus (Ten.) W. Greuter , Boissiera 13: 147 (1967)

( Cirsium strictum (Ten.) Link ).

Perennial herb (3O-)6O-1OO(-12O) cm. Stem sparsely arachnoid-hairy, glabrescent towards the base, with narrow spinose wings. Leaves decurrent, narrowly oblong to oblong-lanceolate, lobed to pinnatifid, sparselyarachnoid-lanate to glabrescent beneath; segments 2-lobed, with stout spines 2—5(— 11) mm. Capitula in dense clusters on stems and branches. Involucre 17-24 x 12-17 mm; outer and middle bracts with white ventral swelling, the apex patent, subulate-spinose. Corolla 16-21 mm. Achenes 3 -5-5 mm; pappus 13-18 mm. Deciduous woods and scrub. • C. & S. Italy, W. & S. parts of Balkan peninsula. Al Gr It Ju.