Arctium tomentosum, Miller

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 : 215

1. A. tomentosum Miller , Gard. Diet. ed. 8, no. 3 (1768)

( Lappa tomentosa (Miller) Lam.).

Plant 50-150 cm; petioles and peduncles slightly farinose and fioccose. Basal leaves up to 50 cm,

broadly ovate, cordate; petioles solid. Each main branch of inflorescence corymbose, occasionally elongate. Peduncles 3-10 cm. Involucre 12-20 x 15-25 mm in fruit, usually with dense arachnoid indumentum, rarely more or less glabrous. Florets longer than involucral bracts. Achenes 5-6 mm, pale brownish; pappus 1-3-5 mm. 2« = 36. Most of Europe, but rarer in the north and west. Au Be BI Bu Co Cz Da Fe Ga Ge Gr He Ho Hs Hu It Ju No Po Rm Rs (N, B, C, W, K, E) Su [Br].