Saxifraga longifolia, Lapeyr.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 380

122. S. longifolia Lapeyr. , Fig. Fl. Pyr. 1: 26 (1801).

Leaves 30-80 x 3-8 mm, linear, somewhat expanded below the apex and then tapered to a subacute apex, entire or feebly erose-crenate, glabrous, glaucous, lime-encrusted, very numerous, forming a large, flat, regular rosette. Flowering stem 25-50 cm, stout, branched from near the base to form a large, pyramidal panicle with very many flowers. Pedicels and hypanthium glandular-hairy. Petals 5-6 mm, white, rarely with fine red spots. 2n = 28. Mountain cliffs; calcicole. Pyrenees and E. Spain. Ga Hs.