Aira caryophyllea L.
Family: Poaceae
Aira caryophyllea image
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.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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Indiana Coefficient of Conservatism: C = null, non-native

Wetland Indicator Status: FACU

Diagnotic Traits: Delicate annual grass with open panicle inflorescence; spikelets 2-flowered; glumes awnless; lemmas scabrous, its awn attached dorsally between apex and base; palea 1+ mm long.