Eupatorium adenophorum, Sprengel

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 : 109

2. E. adenophorum Sprengel , Syst. Veg. 3: 420 (1826).

Erect or scrambling perennial up to 200 cm. Stems, petioles and peduncles with short glandular hairs. Leaves unlobed, rhombic or triangular, crenate-serrate except for the cuneate or truncate basal portion; petiole c. | as long as lamina. Capitula 5-10 mm in diameter; involucre campanulate; bracts broadly scarious, reddish, acute or acuminate, glandular-serrulate above, and with scattered purplish glandular hairs; outer bracts about as long as the inner. Achenes c. 2 mm, black; pappus hairs 5-10. 2« = 51. Sometimes cultivated for ornament and naturalized in S. Europe. [Az Co Cr Hs Lu.] (Mexico.)