Carex lasiocarpa Ehrhart var. americana Fernald. Section: [26oo] Section 28 Paludosae. Common name: Slender Sedge. Phenology: Jun. Habitat: In shallow water of alkaline spring seeps, on hummocks in acidic basin marshes, and in high elevation fen over amphibolite. Distribution: A circumboreal species; var. lasiocarpa is Eurasian, var. americana ranges from NL west to AK, south to NJ, WV, MD (C. Frye, pers. comm. 2000), VA, nw. NC, MO, IA, CO, UT, and n. CA. Reported for the Ozark portion of MO (J. Thomas, pers. comm., 2020). First reported for VA by Wieboldt et al. (1998). Found for the first time in NC in the valley of Long Hope Creek (Ashe County, NC), in Jul 1999 by A.S. Weakley and P.D. McMillan.

Origin/Endemic status: Native

Synonymy ⓘ: = C, F, G, GrPl, Il, K4, NS, POWO, Va; = Carex lasiocarpa Ehrh. ssp. americana (Fernald) Hultén — Can, FNA23, NE, NY; = n/a — RAB; < Carex lasiocarpa Ehrh. — Mi, Pa, W, Mackenzie (1931-1935). Basionym: Carex lasiocarpa Ehrh. var. americana Fernald 1942

Links to other floras: = Carex lasiocarpa ssp. americana - FNA23

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Wetland Indicator Status:

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

Heliophily ⓘ: 8