This member of the Anacardiaceae family from Baja California's west coast was given this name by Frederick Vernon Coville in 1911. It grows on lava-rubble or hillsides with little water and lots of sun. The stem can grow to one meter in diameter and reach from three to ten meters in height. The plentiful flowers are crème to pink.
The genera name from Greek pachys; 'thick' and Greek kormos; 'trunk' for the thick trunk and branches. The species name means 'many-coloured' or 'with different colours'. A big tree by Baja_Costero, Garden.org.