Brighamia insignis, commonly known as Olulu or Alula in Hawaiian, or colloquially as the vulcan palm or cabbage on a stick, is a critically endangered species of Hawaiian lobelioid in the bellflower family, Campanulaceae. It is native to the islands of Kauai and Niihau. This short-lived perennial species is a member of a unique endemic Hawaiian genus with only one other species. It is now extremely rare. In 1994 the United States Fish and Wildlife Service reported five populations totaling 45 to 65 individuals, and listed the plant as an endangered species.