A gigantic plant with an ear-shaped stalk. Its horn-like stamen points to the source of a sound, even from long distances, and the stalk amplifies them.
Apparently the Fern is native to Edanna. A Hearken Fern was imported on a ledge in J'nanin. It can pick up the sounds fro the lake of the caldera, the Whistling Rock formation, the clouds, the suspension bridge, as well as the chirping of a squee, causing the Barnacle Moss buds nearby to expand.