Synonyms
Oenothera minor (A.Nelson) Munz
Oenothera minor var. cusickii Munz
Oenothera minor var. typica Munz
Oenothera chamaenerioides var. torta H.Lév.
Sphaerostigma tortum (H.Lév.) A.Nelson
Sphaerostigma tortum var. eastwoodiae A.Nelson
Camissonia minor (A.Nelson) P.H.Raven
Sphaerostigma minus A.Nelson
Sphaerostigma nelsonii A.Heller