the root (no rank)
Eukaryota (domain)
Viridiplantae (kingdom)
Embryophyta (phylum)
Equisetophyta (subphylum)
Sphenopsida (class)
Equisetales (order)
Equisetaceae (family)
[hide inferior taxa]
Equisetum arvense (species)
Equisetum giganteum (species)
Equisetum hyemale (species)
Equisetum telmateia (species)