Synonyms recognized by ITIS (bold taxon is currently accepted):

     Elodea nuttallii (Planch.) St. John
     Anacharis nuttallii Planch.
     Anacharis occidentalis (Pursh) Victorin
     Elodea columbiana St. John
     Elodea minor (Engelm. ex Caspary) Farw.
     Elodea occidentalis (Pursh) St. John
     Philotria angustifolia (Muhl.) Britt. ex Rydb.
     Philotria minor (Engelm. ex Caspary) Small
     Philotria nuttallii (Planch.) Rydb.
     Philotria occidentalis (Pursh) House
     Udora verticillata var. minor Engelm. ex Caspary

Common Name(s): élodée de Nuttall, nuttall waterweed, western waterweed.

Taxonomic Hierarchy: (ITIS TSN=502246, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Liliopsida
                        Subclass: Alismatidae
                            Order: Hydrocharitales
                                Family: Hydrocharitaceae
                                    Genus: Elodea
                                        Species: Elodea nuttallii