Erysimum duriaei subsp. gorbeanum Erysimum duriaei subsp. neumannii
Erysimum mayorii Erysimum duriaei subsp. duriaei Erysimum cantabricum Erysimum humile subsp. duriaei Erysimum ochroleucum subsp. duriaei
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024