Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
view in classification
Phylum
IABIN resource Phylum
India Biodiversity Portal Species Data Phylum
Monthly ARKive text import Phylum
Monthly ARKive text import Phylum
AlgaeBase
view in classification
Phylum
AskNature Phylum
AskNature Phylum
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa
  • Pteridophyta
BOLDS images II Phylum
BOLDS images II Phylum
BOLDS resource for species-level taxa Phylum
BioImages resource Phylum
BioImages resource Phylum
EOL Group on Flickr Phylum
EOL Group on Flickr Phylum
EOL Group on Flickr Phylum
EOL Group on Flickr Phylum
EOL Group on Flickr Phylum
EOL hotlist Scratchpad Phylum
  • Tracheophyta
Environments Phylum
Environments Phylum
Environments Phylum
Environments Phylum
IRMNG
view in classification
Phylum
FALO Classification Phylum
GBIF national node classification resource: Germany Phylum
GBIF national node classification resource: Germany Phylum
GBIF national node type records: Brazil Phylum
GBIF national node type records: France Phylum
GBIF national node type records: France Phylum
GBIF national node type records: France Phylum
GBIF national node type records: Germany Phylum
GBIF national node type records: Germany Phylum
GBIF national node type records: Germany Phylum
GBIF national node type records: Netherlands Phylum
GBIF national node type records: Netherlands Phylum
GBIF national node type records: Sweden Phylum
GBIF national node type records: Sweden Phylum
GBIF national node type records: Sweden Phylum
GBIF national node type records: United Kingdom Phylum
GBIF national node type records: United Kingdom Phylum
GBIF national node type records: United Kingdom Phylum
Global Biotic Interactions Phylum
Global Biotic Interactions Phylum
India Biodiversity Portal Species Data Phylum
INBio resource Phylum
IUCN Red List Phylum
IUCN Red List
view in classification
Phylum
IUCN Red List
view in classification
Phylum
BioLib.cz Import
BioLib.cz Import
BioLib.cz Import
BioLib.cz Import
Integrated Taxonomic Information System (ITIS)
view in classification
Phylum
Library of Alexandria Phylum
Mushroom Observer Phylum
NCBI Taxonomy
view in classification
Natural History Museum Species of the day Phylum
Natural History Museum Species of the day Phylum
NatureServe resource Phylum
OBIS Environmental Information
  • Tracheobionta
One-time import of archived NBII images Genus
One-time import of archived NBII images Species
Paleobiology Database
view in classification
Phylum
Plazi Treatments Phylum
SPIRE resource
  • Tracheobionta
Sal et al, 2013 Phylum
India Biodiversity Portal Species Data Phylum
IUCN Structured Data Phylum
Taxonomic Hierarchy of COL-China 2012
view in classification
Phylum
The Biodiversity of Tamborine Mountain: images & videos Phylum
Tropicos resource
  • Pteridophyta J.Y. Bergen & B.M. Davis
Tropicos resource Division
  • Polypodiophyta Cronquist, Takht. & W. Zimm.
Tropicos resource Division
  • Equisetophyta B. Boivin
Tropicos resource Division
  • Psilotophyta B. Boivin ex Reveal
Type data from iDigBio Phylum
Type data from iDigBio Phylum
Type data from iDigBio Phylum
Type data from iDigBio Phylum
Type data from iDigBio Phylum
Type data from iDigBio Phylum
Vimeo resource Phylum
World Register of Marine Species (WoRMS)
view in classification
Phylum
Wikimedia Commons Phylum
Wikimedia Commons
Wikipedia Phylum
Wikipedia Phylum
Wikipedia
Zootaxa via Plazi Phylum
iNaturalist Images Phylum
iNaturalist Images Phylum
iNaturalist Images Phylum

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

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