The Hawaiian Word of the Day is ma'o. Ma'o is the Hawaiian word for several species of hibiscus, both native and non-native. Most commonly, ma'o refers to the native cotton, a small shrub which bears yellow flowers and seed cases containing brown cotton. The flowers from the ma'o plant can be dried and boiled to make a brilliant green dye which can be used to color kapa. The word ma'o is the root of 'oma'oma'o, the word for green. The Hawaiian Word of the Day is ma'o.