Euonymus americanus is a species of flowering plant in the family Celastraceae.
Canotia holacantha, a shrub or small tree in the family Celastraceae native to the Mojave and Sonoran Deserts
Maytenus, as do most of the Celastraceae, harbours an alkaloid named celastrin first obtained from Celastrus scandens by Prof. Edward S. Wayne of Cincinnati in 1872 as a white, crystalline substance.