Ephedra distachya subsp. distachya

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 40

(a) Subsp. distachya :

Twigs ascending, pale green or glaucous. Female inflorescence stipitate. Tube of integument straight. 2« = 24, 28. Sandy shores and stream-banks. Almost throughout the range of the species.