Melicope zahlbruckneri

Melicope zahlbruckneri (Zahlbruckner's melicope, Zahlbruckner's pelea, kipuka piaula) is a species of tree in the citrus family. It is endemic to the Hawaiian Islands. Like other Hawaiian Melicope, this species is known as alani. It is threatened by habitat loss and is federally listed as an endangered species of the United States.

This tree only occurs on the island of Hawaii. Its habitat is lava flows and soils rich in volcanic ash. There is a single population of 25 mature trees in Hawaii Volcanoes National Park, and a few trees at a location nearby. A few immature trees have been planted in appropriate habitat. The plants are protected from cattle and feral pigs, but the habitat is still affected by non-native plants.