Phyteuma hedraianthifolium, R. Schulz

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 : 98

20. P. hedraianthifolium R. Schulz , Monogr. Phyteuma 150 (1904).

Stem 2-18 cm, ascending to erect, glabrous, leafy. Basal leaves almost linear, somewhat widened in the middle or towards the apex, usually remotely and shallowly serrate. Inflorescence globose. Bracts linear-lanceolate to narrowly linear, acute, the outer 20-40 x 1 -5-3 mm, usually twice as long as the inflores­ cence, similar to the upper cauline leaves, denticulate, deflexed in fruit. Corolla dark blue-violet, nearly straight in bud. 2л = 28. Rocks and stony pastures. • E. C. & E. Alps, eastwards to c. 12° E. Helt.