Hāpuʻu or Hāpuʻu meu
Endemic to the Hawaiian Islands
ʻAiea Ridge Trail, Oʻahu
Underside of frond showing the sori (fern spore).
The generic name Cibotium is from the Greek kibotion, diminutive of kibotos, a box or casket, in reference to the indusium, a part of the fern blade that covers the sorus (spores).
The specific name, chamissoi, named for Ludolf Karl Adelbert von Chamisso (1781-1838), French-born German explorer, naturalist, author, poet, and plant collector.