Carex louisianica L.H. Bailey. Section: [26rr] Section 31 Lupulinae. Louisiana Sedge. Phen: May-Jul. Hab: Floodplain forests and other wet forests. Dist: NJ south to ne. FL, Panhandle FL, west to TX, north in the interior to KY, IN, and MO; disjunct in ne. OH. McAvoy (2021) documented the occurrence of the species in DE.

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, ETx1, F, FNA23, G, GW1, Il, K1, K3, K4, Mo1, NcTx, RAB, S, Tat, Tn, Va, W, WH3, Mackenzie (1931-1935); < Carex lupulina Muhl. ex Willd. – Tx

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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