Arctium minus, Bernh.

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

4. A. minus Bernh. , Syst. Verz. Erfurt 154 (1800)

( Lappa minor Hill ).

Plant 50-150 cm. Basal leaves up to 50 cm, broadly ovate, cordate; petioles hollow. Each main branch of inflorescence racemose, the terminal capitula usually solitary. Involucre 15-18 x 15-25 mm in fruit, globose, green or purple-tinged, often with dense arachnoid indumentum when young, becoming subglabrous, closed in fruit. Florets longer than involucral bracts. Achenes 5-7 mm, brownish; pappus 1-3-5 mm. 2n = 36. Most of Europe except the arctic. All except Az Cr Fa Is Sb.