Hapu'u ferns, scientifically known as Hapuu, are large, tree-like ferns native to the tropical forests of Hawaii. They can grow up to 30 feet tall and have broad, feathery fronds that can reach lengths of 10 feet. These ferns thrive in moist, shaded environments and play a crucial role in their ecosystem by providing habitat and food for various wildlife. The Hapu'u fern is also significant in Hawaiian culture, where it is often used in traditional practices and crafts. Its fibrous trunk can be utilized for making hula implements and other cultural items. Additionally, Hapu'u ferns contribute to soil stability and help prevent erosion in their native habitats.