Klasifikasi
Kingdom: Plantae
Subkingdom: Tracheobionta
Superdivisi: Spermatophyta
Divisi: Magnoliophyta
Kelas: Liliopsida
Subkelas: Alismatidae
Ordo: Hydrocharitales
Spesies: Elodea nuttallii (Planch.) H. St. John
Sinonim
Anacharis nuttallii Planch.
Anacharis occidentalis (Pursh) Victorin
Elodea columbiana H. St. John
Elodea minor (Engelm. ex Caspary) Farw.
Elodea occidentalis (Pursh) H. St. John
Philotria angustifolia (Muhl.) Britton ex Rydb.
Philotria minor (Engelm. ex Caspary) Small
Philotria nuttallii (Planch.) Rydb.
Philotria occidentalis (Pursh) House
Udora verticillata var.
minor (L. f.) Spreng.
Nama Umum
Inggris: western waterweed