Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Learn more about Annual Bluegrass from the Vascular Plants of North Carolina.
Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales
Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Annual Bluegrass, Six-weeks Grass, Speargass
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Gill Newberry gn04_poa_annua
Plants to 40cm but usually < 15cm, bright green, tufted, often forming mats, per Wildflowers of the Eastern United States.