Equisetum praealtum

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Equisetum praealtum, Quebec, Canada


Taxonavigation: Equisetales 

Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Pteridophyta
Classis: Equisetopsida
Ordo: Equisetales

Familia: Equisetaceae
Genus: Equisetum
Subgenus: E. subg. Hippochaete
Species: Equisetum praealtum


Equisetum praealtum Raf.


  • Equisetum robustum var. affine Engelm., Amer. J. Sci. Arts 46: 88 (1844).
  • Equisetum hyemale subsp. affine (Engelm.) Calder & Roy L.Taylor


  • Florula Ludoviciana: 13 (1817; "prealtum", orth. err.).
  • Christenhusz, M. J. M., Bangiolo, L., Chase, M. W., Fay, M. F., Husby, C., Witkus, M., & Viruel, J. 2019. Phylogenetics, classification and typification of extant horsetails (Equisetum, Equisetaceae). Botanical Journal of the Linnean Society 189 (4): 311–352. doi:10.1093/botlinnean/boz002 (splits from E. hyemale)
  • Canad. J. Bot. 43: 1387 (1965).
  • USDA, ARS, Germplasm Resources Information Network. Equisetum praealtum in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service.

Vernacular names[edit]

English: Scouringrush Horsetail
Wikimedia Commons For more multimedia, look at Equisetum praealtum on Wikimedia Commons.