Hieracium porrifolium, 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 : 399

196. H. porrifolium L. , Sp. Pl. 802 (1753).

Stems 30-45(-60) cm, glabrous or nearly so. Basal leaves 25-140 x l-3(4-5) mm, filiform to linear, acute, entire, rarely remotely denticulate, the margin often subrevolute and glabrous or with few long hairs; cauline (3—)5— 15, like the basal. Capitula (2-)6-20(-30); peduncles long, slender, glabrous or with a few stellate hairs. Involucre 9—10(— 11) x 9-10 mm; bracts linear to linear-lanceolate, more or less obtuse, with few to numerous stellate hairs especially on the margin and at the base, without simple eglandular hairs, without or with occasional small glandular hairs. Stigmas yellow or discoloured. Achenes pale yellowish-brown. 2л = 18. Rocky places and grassy slopes on limestone', 60-400(-2100) m. • 5 Alps. Au It Ju.