Eleocharis equisetoides (Elliott) Torrey. Horsetail Spikerush. Phen: Jun-Sep. Hab: Quiet waters of limesink (doline) ponds, natural lakes, borrow pits, ditches, artificial millponds. Dist: MA south to c. peninsular FL, west to se. TX, AR, s. MO, and se. OK; also near the Great Lakes from NY west to MI, MO. Reported for OK (Buthod & Hoagland 2017).

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, ETx1, F, FNA23, G, GW1, Il, K1, K3, K4, Mi, Mo1, NE, NY, RAB, Tat, Tn, Tx, Va, WH3, Angelo, Rosen, & Lange (2020), Brunton, Campbell, & Reznicek (2018); < Eleocharis equisetoides (Elliott) Torr. – S

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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 ⓘ: 9