Endemic to the island of Ni'ihau, Hawai'i. Although the status of this taxon in the wild is uncertain, it is believed that 2 individuals still survive. Many additional individuals are in cultivation. The island of Ni'ihau has been extensively modified by ranching, feral undulates, and alien plants. Rats are known to feed on the fruits of Hawaiian Pritchardia, and are present on Niihau, thus posing a potential threat.
cattle, pigs, and sheep naturally occurring events and/or reduced reproductive vigor due to the small number of reproductive plants
two plants on Kaali Cliff (Read and Hodel 1990)
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