This cultivated palm was photographed in Huntington Botanical Gardens a couple summers ago.
Native to Kohala Mountain of the Big Island of Hawai’i, less than a thousand individual wild plants of Pritchardia lanigera are thought to exist. The IUCN Red List, accordingly, identifies it as endangered (ignore the error of Kohala being on O’ahu). Numbers of plants for this species are difficult to determine, as it grows on “precipitous” valley slopes. Growing to a height of 6m, (I imagine) it is not easy to spot via an aerial census, as I presume it isn’t a part of the forest canopy.
The scientific name for the genus honours William T. Pritchard, 19th century British consul in the Fiji Islands, while the epithet lanigera means “woolly” (demonstrated in the photograph). Commonly, it is known as lo’ulu.