Equisetum

Contains 2 accepted taxa overall.

Characteristics
Equisetum L.
EQUISETACEAE
HORSETAIL
View USF Herbarium specimens of this family
Classification
EQUISETALES
Equisetum
Citation
EQUISETUM Linnaeus, Sp. Pl. 1061. 1753.
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TYPE: Equisetum arvense Linnaeus Lectotypified by Pichi Sermolli, Webbia 179. 1971, superseding the lectotypification by Britton & Brown, Ill. Fl. N. U.S., ed. 2. 1: 39. 1913 (Equisetum fluviatile Linnaeus); see also Farwell, Mem. New York Bot. Gard. 6: 4
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Equisetum hyemale var. affine SCOURING-RUSH Native FACW (NWPL) FACW (DEP)
Equisetum ramosissimum BRANCHED SCOURING-RUSH Not Native
Identification Key
1.  Erect stem usually unbranched; leaf sheath ridges not convex; stomata in 1 line
E. praealtum
1.  Erect stem usually with 2-6 branches per node; leaf sheath ridges convex; stomata in (1)2(3) lines
E. ramosissimum
Genus Synonyms
Synonym Full Citation Basionym Type
Allostelites Allostelites Boerner, Fl. Deutsch. Volk 59, 283. 1912. TYPE: Allostelites arvensis (Linnaeus) Boerner (Equisetum arvense Linnaeus) Lectotypified by Pichi Sermolli, Webbia 26: 182. 1971. = Equisetum Linnaeus 1753, by lectotypification.
Hippochaete Hippochaete Milde, Bot. Zeitung (Berlin) 23: 297. 1865. TYPE: Hippochaete hyemalis (Linnaeus) Boerner (Equisetum hyemale Linnaeus) Lectotypified by Farwell, Mem. New York Bot. Gard. 6: 464. 1916; Rothmaler, Feddes Repert. Spec. Nov. Regni Veg. 54: 80. 1944.