Clarkia purpurea subsp. viminea Clarkia purpurea subsp. quadrivulnera
Oenothera humilis Onagra purpurea Clarkia romanzovii Godetia purpurea Godetia purpurea var. elmeri Godetia purpurea var. lacunora Godetia purpurea var. procera Godetia romanzowii Godetia willdenowiana Clarkia purpurea subsp. purpurea Oenothera quadrivulnera var. hirsuta Oenothera purpurea Clarkia purpurea var. hirsuta Godetia purpurea var. parviflora Oenothera auricula f. vimineiformis
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024