Croton rivinaefolius var. macraei Croton scouleri var. castellanus Croton scouleri var. glabriusculus Croton scouleri f. glabriusculus Croton incanus var. microphyllus Croton macraei Croton scouleri var. albescens Croton scouleri f. incanus Croton scouleri f. microphyllus Croton scouleri f. verus Croton xalapensis Croton rivinaefolius var. albescens Croton scouleri f. macraei Croton albescens Croton incanus Croton scouleri var. macraei
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024