Equisetum laevigatum A.Braun & Engelm.
Smooth HorsetailEquisetaceae
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Protologue: Amer. J. Sci. Arts 46: 87 (1844)
Pronunciation: E-qui-sè-tum lae-vi-gà-tum
Etymology: from equus, horse + seta, bristle + L. laevis, smooth
Jepson eFlora Treatment
Jepson eFlora Key to Equisetum
SD County Synoptic Voucher
Distribution:
Left: S.D. County Plant Atlas (http://sdplantatlas.org). Right: CCH2. Click to see current herbarium records.
Equisetum laevigatum
Differs from E. hyemale in having a single black band on leaf sheaths and a smoother stem surface. Cone is more rounded at apex.
(Images courtesy of jrebman, iNat Observations 26516106 & 78626221)
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