fourwing evening primrose
Botanical name for Oenothera tetraptera, a specific species of evening primrose with white flowers that open in the evening.
The fourwing evening primrose blooms white flowers in the evening.
fragrant evening primrose; large-flowered evening primrose
Colloquially used for other evening primrose species, especially Oenothera stricta and Oenothera glazioviana, which are more commonly seen in gardens and roadsides.
Many evening primroses were blooming by the roadside.