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Kingdom
:
Plantae (Plant)
Subkingdom
:
Viridaeplantae (green plants)
Infrakingdom
:
Streptophyta
Phylum/Division
:
Tracheophyta (vascular plants)
Subphylum/Subdivision
:
Pteridophytina (club mosses, horsetails, ferns)
Class
:
Equisetopsida
Order
:
Equisetales
Family
:
Equisetaceae (horsetails)
Genus
:
Equisetum (horsetail, scouring rush)
Species
:
Equisetum variegatum (Northern scouring-rush)
Species
:
Equisetum arvense (western horsetail, giant horsetail)