Carex conoidea Schkuhr ex Willdenow. Section: [26ee] Section 22 Griseae. Common name: Ancient Prairie Sedge. Phenology: May-Jun. Habitat: Calcareous and mafic fens and seepages; saturated meadows and fields over limestone, dolomite, or mafic rocks; depressions in upland prairies. Distribution: NL (Newfoundland) west to MN, south to nw. NC (Ashe Co. and Alleghany Co.), nw. AR, and MO. First found in NC by a party led by Asa Gray in 1841 "on the moist, grassy brow of a precipice of the Bluff" (where it still occurs); located at a second site in NC by D.B. Poindexter. Alleged to occur in sw. United States (Kartesz 2022), these occurrences considered introduced by POWO (2024).

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, Can, FNA23, Il, K4, Mi, Mo1, NE, NS, NY, Pa, POWO, RAB, S, Tat, Va, Mackenzie (1931-1935); > Carex conoidea Schkuhr ex Willd. — F, G; > Carex katahdinensis Fernald — F, G. Basionym: Carex conoidea Schkuhr ex Willd. 1805

Links to other floras: = Carex conoidea - FNA23

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Wetland Indicator Status:

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

Heliophily ⓘ: 9