Flora of the Southeastern United States
2022 Edition


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Glyceria obtusa (Muhlenberg) Trinius. Coastal Mannagrass. Phen: Jun-Sep. Hab: Blackwater swamp forests, streamhead pocosins, wet meadows, freshwater marshes, in a wide variety of peaty, acidic soils. Dist: NS south to SC, on or near the Coastal Plain; disjunct to w. VA in Shenandoah Valley sinkhole ponds.

Origin/Endemic status: Native

Syn: = C, F, FNA24, G, GW1, HC, K1, K3, K4, NE, NY, Pa, RAB, Va, W, Tucker (1996); = Panicularia obtusa – S

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image of plant© Alan Weakley source
image of plant© Bruce A. Sorrie