Jasione laevis, Lam.

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 : 101-102

6. J. laevis Lam. , FZ. Fr. 2: 3 (1779)

( J. perennis Lam. ).

Nearly glabrous to moderately villous perennial with numerous nonflowering shoots. Flowering stems erect or ascending, leafless above. Leaves linear-oblong to linear-oblanceolate, not undulate, nearly entire; margin thin, not or weakly papillose. Outer involucrai bracts numerous, ovate to triangular, cibate near the base, deeply toothed; teeth aristate. Calyx-teeth subulate, green, glabrous. Corolla blue. 2л =12, 24. • W. & W.C. Europe, northwards to Luxembourg’, Balkan peninsula, extending to S.W. Romania and S. Italy. Al Be Bu Co Ga Ge Gr Hs It Ju Rm [Fe].

1 Flowering stems (15-)20-50 cm; cauline leaves (7-)12-30

2 Largest leaves not more than 3(-4) mm wide, linear-oblong

(a) subsp. laevis 2 Largest leaves (4-)5-8 mm wide, oblanceolate (d) subsp. rosularis 1 Flowering stems 5-15 cm; cauline leaves 2—10(—15)

3 Densely caespitose, with stout stock; cauline leaves 8-15; bracts usually green (c) subsp. orbiculata 3 Laxly caespitose, with slender stock; cauline leaves 2-10; bracts usually purplish

4 Flowering stems 0-25-0-4 mm in diameter at apex, with 2—3(—4) cauline leaves (b) subsp. carpetana 4 Flowering stems 0-8-1 mm in diameter at apex, with (4—)5—10(—15) cauline leaves (a) subsp. laevis