Much like V. myuros, but with a longer first glume, this 3.5-5 mm, more than half as long as the second one; awn of the first lemma 3-12 mm; infl fully exserted from the sheath, its branches tightly erect-appressed; 2n=14. Native of Europe, now a cosmopolitan weed, only occasional with us. (Festuca b.; F. dertonensis; V. d.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.