A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium, Burke Museum
Hosted by the University of Washington Herbarium, Burke Museum
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Equisetaceae » Equisetum arvense
Equisetum arvense L.[FNA2, HC, HC2]
common horsetail, field horsetail
Publication: Sp. Pl. 2: 1061. 1753.
Origin: Native
Herbarium search: CPNWH
Notes: FNA2: "Among the many infraspecific taxa that have been named in this species, Equisetum arvense var. boreale Bongard has been most generally accepted and has been applied to plants with tall, erect stems with 3-ridged branches. Because both 3-ridged and 4-ridged branches may occur on a single stem, the variety boreale is not recognized here as distinct (R.L. Hauke 1966)."
Last updated 4/25/2020 by David Giblin.
Synonyms & Misapplied Names:
Equisetum arvense L. var. boreale (Bong.) Rupr.
