Contorted Pod Evening Primrose, Contorted Pod Suncup, Slender Evening Primrose, Twisted Suncup: Camissonia contorta (Synonyms: Oenothera contorta, Oenothera contorta var. contorta, Sphaerostigma contortum) -
Hilgard's Evening Primrose, Hilgard's Suncup: Neoholmgrenia hilgardii (Synonyms: Camissonia hilgardii, Holmgrenia hilgardii, Oenothera andina var. hilgardii, Oenothera contorta, Oenothera contorta var. hilgardii, Oenothera hilgardii) -
Diffuseflower Evening-primrose, Long-leaf Evening-primrose, Long-leaved Evening Primrose: Taraxia subacaulis (Synonyms: Camissonia subacaulis, Oenothera heterantha, Oenothera subacaulis) -
Tansy-leaf Evening Primrose: Taraxia tanacetifolia (Synonyms: Camissonia breviflora, Camissonia tanacetifolia, Camissonia tanacetifolia ssp. tanacetifolia, Oenothera breviflora, Oenothera tanacetifolia, Taraxia breviflora, Taraxia tanacetifolia ssp. tanacetifolia) -
Hill Suncup Slender-flowered Evening Primrose: Tetrapteron graciliflorum (Synonyms: Camissonia graciliflora, Oenothera graciliflora)