Galium megalospermum, All.

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 : 33

114. G.megalospermum All. , Pl.Pedem. 1:9(1785)

( G. helveticum Weigel ).

Like 113 but flowering and non-flowering stems decumbent; flowering stems scarcely more than 10 cm; internodes usually less than 2 cm; leaves 4-11 x 1-2- 1 mm, in whorls of 6-7(-8), 3|-5 times as long as wide, broadly oblanceolate to narrowly obovate, dull; hyaline apex less than 0-3 mm; inflorescence ovoid, bracteate to the ultimate branches; pedicels more than 2-2 mm, deflexed and elongated after flowering; fruit 2-2-5 mm. 2n = 22,44. Calcareous andschistose screes. • Alps. Au Ga Ge He It.

Diploid and tetraploid plants are morphologically almost indistinguishable; the tetraploids are at present known only from the W. Alps.