Marattia alata, Marattia attenuata.
Botanical name:
Classic texts: Sturtevant 1919.
Classic texts: Sturtevant 1919.
Marattia kaulfussii J. Sm.
Bot. syn.: Marattia alata Sw., Marattia laevis Sm.
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.