Cedar leaf oil from "Cedrus atlantica" does not contain thujone. It feeds on "Cedrus atlantica" and "Abies numidica". The predominant canopy tree in the forests is Atlas cedar ("Cedrus atlantica"). Other interesting non-native trees include an Algerian fir ("Abies numidica") and Atlas cedar ("Cedrus atlantica"). He obtained and grew three specimens of the Atlas Mountain Cedar, "Cedrus atlantica".