Leontodon rigens, (Aiton) Paiva & Ormonde

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 : 315

27. L. rigens (Aiton) Paiva & Ormonde , op. cit. 448 (1972)

( Crépis rigens Aiton ).

Perennial with oblique, truncate stock. Stems 15-60 cm, branched, with few to numerous, rigid simple eglandular and long-stalked 2-fid hairs; bracts numerous. Leaves 90-310 x 30-120 mm, elliptical, obtuse to subacute, narrowed into a winged petiole, regularly dentate with narrowly mammiform, patent teeth, with few to numerous, rigid, simple eglandular or long-stalked 2-fid hairs. Capitula 20-80, in a more or less corymbose panicle. Involucre 8-12x4-6 mm; bracts linear to linear-lanceolate, more or less obtuse, glabrous or with appressed soft hairs, sometimes with a few longer rigid hairs. Ligules yellow. Styles discoloured. Achenes 4-5-5-5 mm, pale brown, weakly transversely muricate, shortly beaked; pappushairs in 2 rows, the inner plumose, the outer scabrid. • Açores. Az.