Histiopteris incisa (Thunb.) J. Sm. Bot. syn.: Litobrochia sinuata Brack., Pteris incisa Thunb.
Classic texts: Sturtevant 1919.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.