Aira caryophyllea L.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Culms very slender, smooth, 1–3 dm; sheaths and filiform blades scaberulous; infl lax, pyramidal, nearly as broad as long, with ascending branches; pedicels mostly 1–2 times as long as the spikelets; glumes 2.3–3 mm; lemmas 1.8–2.3 mm, both awned, the awn 2.4–3.3 mm; 2n=28. Native of Europe, intr. in dry soil in open places from Vt. and Mass. to Fla. and Tex., mostly near the coast.