Cyperus schweinitzii Torrey. Sand Flatsedge. Phen: Jun-Sep. Hab: Sandy soils. On dunes in the Great Lakes. Dist: VT, MA, MN, and Albert, south to s. NJ, se. and sw. PA (Rhoads & Block 2007), n. KY, OH, MO, TX, NM, UT, and Mexico (CHH, COA, DGO, JAL, ZAC).

Origin/Endemic status: Native

Synonymy: = C, F, FNA23, G, GrPl, Il, K1, K3, K4, Mi, Mo1, NcTx, NE, NY, Pa, Tx

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Wetland Indicator Status:

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

Heliophily: 9