Aira caryophyllea subsp. caryophyllea

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 : 227

(a) Subsp. caryophyllea :

Plant usually 5-35 cm; spikelets 2-5-3-5 mm; longer pedicels usually more than 5 mm. 2/i=28. Almost throughout the range of the species.