Carex louisianica
{{Short description|Species of grass-like plant}}
{{speciesbox
| image = Carex louisianica.jpg
| image_caption = Showing characteristic long staminate peduncle
| status = LC
| status_system = IUCN3.1
| genus = Carex
| display_parents = 2
| parent = Carex sect. Lupulinae
| species = louisianica
| authority = L.H.Bailey
}}
Carex louisianica, commonly called Louisiana sedge,{{cite web |url=http://www.herbarium.unc.edu/flora.htm |title= Flora of the Southern and Mid-Atlantic States}} is a species of flowering plant in the sedge family. It is native to North America, where it is primarily found in the southeastern United States.{{BONAP|ref|genus=Carex|species=louisianica|accessdate=30 January 2017}} Its natural habitat is wet, swampy forests and openings.[http://efloras.org/florataxon.aspx?flora_id=1&taxon_id=242357298 Flora of North America]
It is a rhizomatous perennial that flowers in spring. It produces fruits in late spring and summer.