Melanthera waimeaensis (formerly Lipochaeta waimeaensis) is a rare species of flowering plant in the aster family known by the common name Waimea Canyon nehe. It is endemic to Hawaii, where it is known only from the island of Kauai. It is federally listed as an endangered species of the United States. This perennial herb produces daisylike yellow flower heads. It only grows on steep slopes along the rim of Waimea Canyon on Kauai, where there are about 180 plants remaining.