class
Tracheophyta
Tracheophyta
Marattiopsida
Salviniales
Salviniales
Equisetopsida
Equisetales
Equisetales
Polypodiales
Polypodiales
Psilotopsida
Schizaeales
Schizaeales
Cyatheales
Cyatheales
Psilotales
Psilotales
Marattiales
Marattiales
Osmundales
Osmundales
Gleicheniales
Gleicheniales
Ophioglossales
Ophioglossales
Hymenophyllales
Hymenophyllales
Polypodiopsida
Polypodiopsida
Smith, A.R., et al. August 2006. A Classification for extant ferns. Taxon 55 (3):705-731
Psilotopsida
Psilopsida
Equisetopsida
Filicopsida
Filicopsida
Marattiopsida
helechos y aliados
ferns and fern allies
NALT Core
NALT Core
NALT Full
2011-09-02
2016-08-01