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| Kingdom | Plantae
– plantes, Planta, Vegetal, plants |
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| Subkingdom | Viridiplantae
– green plants |
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| Infrakingdom | Streptophyta
– land plants |
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| Superdivision | Embryophyta
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| Division | Tracheophyta
– vascular plants, tracheophytes |
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| Subdivision | Polypodiophytina
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| Class | Polypodiopsida
– leptosporangiate ferns |
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| Subclass | Equisetidae
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| Order | Equisetales
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| Family | Equisetaceae
– horsetails |
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| Genus | Equisetum L.
– scouring rush, prêle, scouringrush, horsetail |
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| Subgenus | Equisetum (Hippochaete) (Milde) Baker
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| Species | Equisetum hyemale L.
– horsetail, scouring horsetail, scouringrush, tall scouring-rush, western scouringrush, prêle d'hiver, scouringrush horsetail |
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| Subspecies | Equisetum hyemale ssp. hyemale (Engelm.) Calder & Roy L. Taylor |
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