Galium broterianum, Boiss. & Reuter

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 : 19

5. G. broterianum Boiss. & Reuter , Diagn. Pl. Nov. Hisp. 15 (1842).

Stolons rooting. Stems 35-70 cm, more or less ascending, lax, 4-angled, glabrous or with long, scattered hairs especially below. Leaves (10-) 18-30 x (3—)8—11(—15) mm, narrowly to broadly elliptical, obtuse, thin, with distinct veins, hairy, especially on the margin and the veins. Inflorescence pyramidal, interrupted, dense-flowered; partial inflorescences corymbose, with dichasial ultimate branches; pedicels (1—)2—3 mm. Corolla 3-3-5 mm in diameter, shallowly infundibuliform. Fruit c. 1 -2 mm, finely papillose, otherwise glabrous. 2n= 22. Damp or shady places in the mountains. • C. Spain, Portugal. Hs Lu.