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Carex decomposita Muhlenberg. Section: [26b] Section 2 Heleoglochin. Cypress-knee Sedge, Epiphytic Sedge. Phen: Apr-Jul. Hab: Blackwater swamp forests, often growing on cypress knees, cypress bases, or fallen logs (often at or near water level), river sloughs, beaver marshes, less typically inland in sloughs or in depressions in bedrock river scour. Dist: NY west to MI, south to sw. GA (Jones & Coile 1988), Panhandle FL, and TX; rarely disjunct inland from the Coastal Plain, especially in river sloughs or beaver marshes (Bradley et al. [in prep.]).

Origin/Endemic status: Native

Taxonomy Comments: See Gaddy & Rayner (1980).

Synonymy ⓘ: = Ar, C, ETx1, F, FNA23, G, GW1, Il, K1, K3, K4, Mi, Mo1, NY, RAB, S, Tn, Tx, Va, WH3, Mackenzie (1931-1935); = n/a – Tat

Links to other floras: = Carex decomposita - FNA23

Show in key(s) | Show Carex section in key

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Wetland Indicator Status:

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

Heliophily ⓘ: 5

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Radford, Ahles and Bell | Original Image ⭷

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