Data mode


Sign up

Copy permalink to share

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

Show in key(s)

Show parent genus

Wetland Indicator Status:

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

Heliophily ?: 5

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

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 ⭷


See something wrong or missing on about Glyceria obtusa? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.

Cite as...