The Jurupa Oak is a clonal colony of Quercus palmeri (Palmer's oak) trees in the Jurupa Mountains in Crestmore Heights, Riverside County, California. The colony has survived an estimated 13,000 years through clonal reproduction, making it one of the world's oldest living trees. The oak was discovered by botanist Mitch Provance in the 1990s and at the time he recognized it as disjunct for the species and likely an ancient clonal stand.