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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

Synonymy: = C, F, FNA24, G, GW1, HC, K1, K3, K4, NE, NY, Pa, RAB, Tat, Va, W, Tucker (1996); = Panicularia obtusa (Muhl.) Kuntze – S, S13

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Northcentral & Northeast: OBL

Heliophily ?: 5

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷

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