• California scrub oak (
Quercus berberidifolia), a widespread species commonly referred to as scrub oak • Coastal scrub oak (
Quercus dumosa), although currently defined in a narrow sense, has been applied to other scrub oaks now considered separate species ;Other California species referred to as "scrub oaks" • Leather oak (
Quercus durata) • Tucker oak (
Quercus john-tuckeri) • Island scrub oak (
Quercus pacifica) ==In the Southwestern United States==