Saxifraga presolanensis, Engler

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 : 373

59. S. presolanensis Engler , Pflanzenreich 67 (IV. 117): 302 (1916).

Leafy shoots numerous, erect, columnar, with numerous persistent dead leaves, forming a deep, soft, dense cushion. Leaves c. 15 mm including petiole, elongate-spathulate or oblanceolate, entire, obtuse to acute, pale green, rather densely covered with long, viscid, glandular hairs; dead leaves greyish-white in apical half when dry. Flowering stems 6-12 cm, slender, weak, viscid, bearing 2-4 flowers in a lax cyme. Petals 3-4 mm, widely separated, oblong-cuneate, emarginate, often with excurrent nerve, dull greenish-yellow. 2« = 16. Vertical, shaded limestone rocks, 1150-2000 m. • N. Italy (Alpi Bergamasche). It.