Cyanea platyphylla (A. Gray) Hillebr.

Cyanea platyphylla (A. Gray) Hillebr.. Cyanea platyphylla is a rare species of flowering plant in the bellflower family known by the common names puna cyanea and flatleaf cyanea. It is endemic to the island of Hawaii, where there are fewer than 100 plants remaining in the wild. It is a federally listed endangered species. Like other Cyanea it is known as haha in Hawaiian.