Vörlaag:Equisetum arvense

| Superregnum: || Eukaryota |- | Regnum: || Plantae |- | Phylum: || Tracheophyta |- | Divisio: || Pteridophyta |- | Classis: || Equisetopsida |- | Ordo: || Equisetales |- | Familia: || Equisetaceae |- | Genus: || Equisetum |- | Subgenus: || E. subg. Equisetum |- | Species: || Equisetum arvense