Equisetum laevigatum A. Braun. Smooth Scouring-Rush. Phen: May-Jul. Hab: Moist areas. Dist: QC and BC south to NY, w. PA, s. OH, s. IN, s. IL, AR (Peck 2011), e. TX, NM, AZ, CA, and n. Mexico. Reported for Warren County, w. VA (Sheik & Weeks 2023). There are old reports, repeated in RAB, and S, of this species farther south; documentation of these reports is not known and may be based on misapplication or misidentification.
Origin/Endemic status: Native
Synonymy: = AqW, Ar, C, ETx1, FNA2, G, GrPl, Il, K1, K3, K4, Mo1, Pa, S13, Sf, TxFerns; = Hippochaete laevigata (A.Braun) Farw.; > Equisetum hyemale L. var. intermedium A.A.Eaton – F; > Equisetum kansanum Schaffner – F, Tx; > Equisetum laevigatum A.Braun – Tx
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC
- Eastern Mountains and Piedmont: FACW
- Great Plains: FAC
- Midwest: FACW
- Northcentral & Northeast: FACW
Heliophily ?: 5
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© Paul Marcum source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Alan Cressler: Equisetum laevigatum, San Pedro River, San Pedro Riparian National Conservation Area, BLM Lands, Cochise County, Arizona 1 by Alan Cressler source | Original Image ⭷
© Paul Marcum source | Original Image ⭷Feedback
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