Tussilago L.

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 : 186

89. Tussilago L. 2

Perennial herbs. Leaves all basal. Scapes numerous, each with one medium capitulum. Involucral bracts in 1 row. Receptacle slightly convex, without scales. Ligulate florets in many rows, female, yellow; tubular florets few, functionally male. Achenes narrowly cylindrical, with 5 ribs, truncate at apex; pappus-hairs numerous, in 1 row, denticulate.