Eleocharis palustris subsp. palustris

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1980, Flora Europaea. Volume 5. Alismataceae to Orchidaceae (Monocotyledones), Cambridge: Cambridge University Press : 283

(a) Subsp. palustris

( E. palustris subsp. microcarpa Walters ; inch E. intersita Zinserl. ):

Spikelet usually with 40-70 florets. Glumes from middle of spikelet 2-75-3-5 mm. Nut l-2-T4(-T5) mm. Stomatal length 35-56 p. 2n=16.