Opuntia leucotricha is a species of cactus with the common names: arborescent pricklypear, Aaron´s beard cactus, and semaphore cactus; and (in Spanish) duraznillo blanco and nopal blanco.

 Opuntia leucotricha is a tree-like cactus, growing up to 5 m tall. The platyclades have a thin fuzz of white hairs on their joints.

The plant is an invasive species in Florida.

Distribution: The plant is endemic to Mexico. The cactus occurs in mountain habitats, in the states of: San Luis Potosí, Tamaulipas, Zacatecas, Guanajuato, and Querétaro.