Dig deeper at SERNEC, a consortium of southeastern herbaria.
Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales
Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Manual of the Southeastern Flora (Small, 1933)
Saltmarsh Foxtail-grass, Giant Foxtail-grass, Giant Bristlegrass
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Keith Bradley kab_setaria_magna_78325
June Collier County FL
Culms to 4m tall. Panicles densely flowered, nodding, to 50cm long, per Manual of the Grasses of the United States.