Question: Hibiscus waimeae, is a species of flowering plant in the okra family, Malvaceae, that is endemic to the island of Kauaʻ i in Hawaii, H. arnottianus" of Oʻ ahu and Molokaʻ i and "H. waimeae", have white flowers, and are the only of how many species of hibiscus, regarded as native to Hawaii?
Answer: seven