Cerastium boissieri, Gren.

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 : 139

14. C. boissieri Gren. , Mém. Soc. Émul. Doubs 1 (2): 37 (1841).

Perennial 5-30 cm, laxly caespitose, mat-forming, with nonflowering stems from subterranean basal branches; basal internodes of flowering stems almost as long as leaves, the uppermost much longer. Leaves usually 10-20 x 1 -5 mm, lanceolate, stiff, patent, straight to recurved, narrowly acute or almost aristate, white- to greyish-tomentose; midrib strong. Flowers 1 -7 in a lax cyme; upper internodes, peduncles, pedicels, bracts and sepals densely glandular. Sepals 6-8 mm, lanceolate, with wide scarious margins; petals up to 15 mm. Capsule straight, broadly cylindrical, teeth erect, with slightly curved margins. Seeds 1 - 5-2 mm, yellowish-brown; testa loose. 2« = 72. 5. & E. Spain; Corse, Sardegna. Co Hs Sa.