Sadleria unisora

Sadleria unisora is a species of chain fern endemic to the Alakaʻi plateau on the island of Kauaʻi.

Distribution and habitat
Sadleria unisora is only found at elevations between 400 - 1520 m in native wet forests on the island of Kaua'i, where it occupies steep walls above streams and canyons.