Guettarda insularis is a species of flowering plant. It is a large shrubby tree native to Socorro Island, the largest of the Revillagigedo Islands which lie west of Mexico's Pacific coast.[1]
Guettarda insularis is prominent in Socorro's higher-elevation forests, which occur between 350and elevation. Other forest canopy trees include Ilex socorroensis, Sideroxylon socorrense, and Psidium oligospermum.[2]
The fruit of the tree is eaten by the Socorro parakeet (Psittacara brevipes).[2]