Onosma tridentina, Wettst.

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

18. O. tridentina Wettst. in A. Kemer, Sched. FI. Exsicc. Austro-Hung. 4: 64 (1886).

Perennial with several, erect flowering stems. Stems 20-40 cm, simple or with up to 6 branches at apex, densely puberulent and setose, the setae 2-3 mm, usually stellate, with rays 0T-0-2 mm. Lower leaves 60-130 x 3-5 mm, linear-oblong, stellate-setose, the setae 1-2 mm, with rays 0-2-0-3 mm, glabrous or sparsely puberulent between setae. Pedicels 2^4 mm; bracts shorter than calyx. Calyx 10-12 mm in flower, up to 16 mm in fruit, with simple setae. Corolla 18- 20 mm, pale yellow, sparsely puberulent. Nutlets c. 3 mm, smooth, shining. 2« = 28. • N.E. Italy (Trentino),?N.W. Jugoslavia. It?Ju.