Pieris algarbiensis, Franco

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 : 316

4. P. algarbiensis Franco , Bot. Jour. Linn. Soc. 71: 268 (1976).

Like 3 but biennial or short-lived perennial; stems 50-90 cm; leaves with scattered, short, bulbous-based spines and a few rigid hairs (mostly on the midrib beneath), the cauline small, oblong; involucre 16-18 x 8-13 mm, the outer bracts without rigid hairs, the inner 3 times as long as outer, linear-oblong, with a dorsal appendage scarcely exceeding the apex of the bracts; achenes olive-brown, the beak twice as long as the body. Woods. • 5. Portugal. Lu.