Klasifikasi
Kingdom: Plantae
Subkingdom: Tracheobionta
Superdivisi: Spermatophyta
Divisi: Magnoliophyta
Kelas: Magnoliopsida
Subkelas: Rosidae
Ordo: Apiales
Spesies: Osmorhiza occidentalis (Nutt.) Torr.
Sinonim
Glycosma ambiguum A.Gray
Glycosma bolanderi (A.Gray) A.Gray
Glycosma maxima Rydb.
Glycosma occidentale Nutt.
Myrrhis ambigua (A.Gray) Greene
Myrrhis bolanderi A.Gray
Myrrhis occidentalis (Nutt.) Benth. & Hook.f.
Osmorhiza ambigua (A.Gray) J.M.Coult. & Rose
Osmorhiza bolanderi (A.Gray) Jeps.
Osmorhiza occidentalis var. bolanderi (A.Gray) J.M.Coult. & Rose
Washingtonia ambigua (A.Gray) J.M.Coult. & Rose
Washingtonia bolanderi (A.Gray) J.M.Coult. & Rose
Washingtonia occidentalis (Nutt.) J.M.Coult. & Rose