Characteristics
Pteridophytes
Equisetum hyemale L. var. affine (Engelm.)A.A.Eaton
SCOURING-RUSH
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The recognition of this taxon at the species level as Equisetum prealtum has been advocated (Christenhusz et al. 2019).
Native
FACW (NWPL)
FACW (DEP)
Classification
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EQUISETALES
Equisetum hyemale L. var. affine (Engelm.)A.A.Eaton - SCOURING-RUSH
Citation
EQUISETUM HYEMALE Linnaeus, var. AFFINE (Engelmann) A. A. Eaton, Fern Bull. 11: 75, 111. 1903.
Equisetum robustum A. Braun ex Engelmann, var. affine Engelmann 1844.
MISSOURI: Near St. Louis, banks of Mississippi River near Jefferson Barracks, Aug 1843, Engelmann s.n. (holotype: MO).
Species Distribution Map
Plant Photos
