Asperula rupicola, Jordan

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 : 9

23. A. rupicola Jordan , Pug. Pl. Nov. 76 (1852).

Shoots green or glaucous-pruinose. Stems (5-)10-15(-20) cm, ascending, more or less glabrous; lower internodes short, the middle ones shorter than or only slightly longer than the leaves. Cauline leaves 20-30 x 1-1-5 mm, linear, subacute, more or less glabrous; margin revolute. Inflorescence rather lax, with more or less capitate partial inflorescences; bracts usually broadly lanceolate, free. Corolla 4-5 mm, externally rough with papillae; tube l|-2 times as long as lobes. Fruit c. 2 mm, coarsely papillose. Subalpine zone. • S. W. Alps. Ga It.