Cyanea crispa (Gaudich.) Lammers, Givnish & Sytsma

Cyanea crispa (Gaudich.) Lammers, Givnish & Sytsma. Cyanea crispa is a rare species of flowering plant known by the common names crimped rollandia and Koolau Range rollandia. It is endemic to Oahu, where there are no more than fifty individuals remaining in the Koʻolau Range. It is a federally listed endangered species of the United States. Like other Cyanea it is known as haha in Hawaiian.