These notes refer to the related species P. munitum and its uses in traditional herbal medicine: An infusion of the fronds has been used as a wash or poultice to treat boils and sores. The young shoots have been chewed and eaten as a treatment for cancer of the womb and to treat sore throats and tonsillitis. The leaves have been chewed by women to facilitate childbirth. The sporangia have been crushed and applied as a poultice to burns, sores and boils. A decoction of the rhizomes has been used in the treatment of dandruff[Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998 ISBN].