Onosma vaudensis, Gremii

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 92

14. O. vaudensis Gremii , Beitr. FI. Schweiz 83 (1870).

Perennial with non-flowering rosettes and 1-2 flowering stems; stems 10-40 cm, usually with 2-4 branches at apex, puberulent and patent-setose, the setae 2-4 mm. Lower leaves 60-150 x 4- 12 mm, narrowly oblanceolate, sparsely puberulent, setose, the setae 1-5-2 mm, sometimes stellate, with rays c. 0-1 mm. Inflorescence with few branches; pedicels 0-2 mm; bracts about equalling calyx. Calyx 12-15 mm in flower, up to 16 mm in fruit. Corolla 19-22 mm, pale yellow, glabrous or with hairs on the lobes or in lines from the lobes, c. l i times as long as calyx. Anthers 6-5-8 mm, entire or slightly toothed at apex. Nutlets c. 3 mm, smooth. 2//= 20. • W. Switzerland (Rhone valley near Aigle). He.

O. arenaria subsp. pennina Br. -Bl., Viert. Naturf. Ges. Zürich 62: 606 (1917), from S. Switzerland and N. Italy, is intermediate between 14 and 15, and may merit specific rank. It is like 14 but with flowering stems 30-50 cm, usually much branched, calyx 10-14 mm, corolla 20-24 mm, often puberulent and anthers toothed at apex.