Galium pruinosum, Boiss.

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 : 26

59. G. pruinosum Boiss. , Elenchus 57 (1838).

Stolons absent. Stems 20-100 cm, more or less rounded, with 4 ridges, glabrous. Leaves 10-20x2-6 mm, in whorls of 5-7, elliptical to broadly lanceolate, somewhat coriaceous; margin with 1-2 rows of papillose teeth, revolute but not to the midrib. Inflorescence ovoid; partial inflorescences corymbiform, lax, few-flowered; pedicels shorter than diameter of corolla. Corolla 3-4 mm in diameter, infundibuliform; tube much shorter than lobes. Crevices of limestone cliffs. • Mountains of S. Spain. Hs.