Pritchardia aylmer-robinsonii is a species of palm tree that is endemic to the island of Niʻihau, Hawaii, United States. It inhabits coastal dry forests at an elevation of 70–270 m (230–890 ft). P. aylmer-robinsonii reaches a height of 7–15 m (23–49 ft) and a trunk diameter of 20–30 cm (7.9–11.8 in). Harold St. John discovered this species in 1949, and the specific epithet refers to Aylmer Francis Robinson, a member of the family that owned the island.[3]P. aylmer-robinsonii has been reintroduced to the Makauwahi Cave Reserve on Kauaʻi, where the species is believed to have previously ranged.[4]
