The Sonoran Woodrat is a medium-sized rodent with large ears and a fully furred tail. In northwestern Mexico it is reported to build nests from brush and to store plant food.
It is medium-sized with notably large ears and a fully haired tail. Upperparts vary from brown to buffy gray with age and season, while the underparts are grayish white.
It is reported to build nests from brush and branches and to store plant foods nearby. These details reflect observations summarized in the species account.
An extinction-risk assessment has not been added yet.