Synonyms
Oenothera hartwegii subvar. filifolia (Eastw.) H.Lév.
Oenothera filifolia (Eastw.) Tidestr.
Oenothera hartwegii var. filifolia (Eastw.) Munz
Calylophus hartwegii subsp. filifolia (Eastw.) Towner & Raven
Oenothera tubicula var. filifolia Eastw.
Calylophus hartwegii var. filifolia (Eastw.) Munz
Galpinsia filifolia (Eastw.) A.Heller