Reichardia Roth

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 : 325

163. Reichardia Roth 1

( Picridium Desf. )

Annual to perennial herbs. Stems solitary to numerous, branched. Leaves entire to deeply pinnatisect, the cauline usually amplexicaul. Capitula few to numerous. Involucral bracts in several imbricate rows, at least the outer with scarious margins and often grading into the bracts of the peduncle. Receptacle without scales. Ligules yellow, the outer often with a reddish stripe on outer face, sometimes purplish at base. At least the outer achenes 4- to 5-angled and transversely rugose; inner achenes always paler, often smooth, probably often sterile; pappus of numerous rows of soft simple hairs.

1 All achenes transversely rugose; ligules purplish at base

2 Involucre 10-15 x 10-15 mm 1. tingitana

2 Involucre 15-22 x 15-30 mm 2. gaditana

1 Inner achenes not transversely rugose; ligules yellow at base

3 Outermost involucral bracts 3-5 x 1 -5-2-5 mm, with a scarious margin not more than 0-5 mm wide 3. picroides

3 Outermost involucral bracts 4-7 x 2-5-3-5 mm, with a scarious margin up to 1 -25 mm wide 4. intermedia