Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

Integrated Taxonomic Information System (ITIS)

Name Relationship
Elodea canadensis Michx. Preferred
Elodea brandegeae H. St. John Orthographic variant (misspelling)
Elodea linearis (Rydb.) H. St. John Synonym
Anacharis canadensis (Michx.) Planch.
Elodea brandegeeae H.St.John
Elodea ioensis Wylie
Elodea planchonii Casp.
Philotria canadensis (Michx.) Britton
Philotria linearis Rydb.
Anacharis canadensis var. planchonii (Caspary) Vict.

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Elodea canadensis Michx. Preferred
Apalanthe schweinitzii Planch.
Anacharis alsinastrum Bab. ex Planch.
Anacharis linearis (Rydb.) Vict.
Anacharis occidentalis (Pursh) Vict.
Anacharis planchonii (Casp.) M.Peck
Anacharis pomeranica Peterm.
Anacharis canadensis (Michx.) Planch.
Anacharis canadensis var. planchonii
Elodea gigantea J.K.Santos
Elodea occidentalis (Pursh) H. St. John
Elodea schweinitzii (Planch.) Casp.
Elodea oblongifolia Michx. ex Casp.
Elodea linearis (Rydb.) H. St. John
Elodea iowensis Wylie
Elodea planchonii Casp.
Elodea canadensis var. planchonii
Elodea latifolia Casp.
Elodea brandegeeae H.St.John
Elodea canadensis var. angustifolia
Serpicula canadensis (Michx.) Eaton
Hydora canadensis (Michx.) Besser
Udora canadensis (Michx.) Nutt.
Philotria angustifolia (Muhl.) Britton ex Rydb.
Philotria canadensis (Michx.) Britton
Serpicula verticillata Rostk. & W.L.E.Schmidt
Serpicula occidentalis Pursh
Philotria iowensis Wylie
Philotria linearis Rydb.
Serpicula verticillata var. angustifolia
Philotria planchonii (Casp.) Rydb.
Philotria occidentalis (Pursh) House
Elodea canadensis var. latifolia
Elodea ioensis Wylie
Anacharis canadensis var. latifolia


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