Vulpia myuros (L.) C.C. Gmel. var. megalura (Nutt.) Auquier (syn.: V. megalura (Nutt.) Rydb., V. myuros f. megalura (Nutt.) Stace et R. Cotton) (Medit.) – A poorly known alien. Formerly recorded as an ephemeral wool alien, nowadays as a rare and casual (?) alien of obscure origin. Perhaps more widespread and confused with native var. myuros.
The taxonomic position of this taxon is uncertain. Some sources merely include it in Vulpia myuros (see for instance Euro+Med Plantbase).
Stace C.A. & Cotton R. (1976) Notes on two alien Vulpias in Britain. Watsonia 11: 72-73. [available online at: http://archive.bsbi.org.uk/Wats11p72.pdf]