Gayophytum diffusum var. strictipes Gayophytum helleri var. erosulatum Gayophytum helleri subsp. erosulatum Gayophytum intermedium Gayophytum lasiospermum Gayophytum lasiospermum var. hoffmannii Gayophytum nuttallii var. abramsii Gayophytum ramosissimum var. strictipes Oenothera gayophytum f. lasiosperma
Taxonomic data from World Flora Online, accessed June 20, 2024