Polypody Ferns of the Cascade Mts.

Polypody Ferns of the Cascade Mts. of Oregon and Washington

Polypodiaceae

Brackenferns: The Genus Polypodium -

Pacific Polypody, Irregular Polypody: Polypodium amorphum -

Licorice Fern: Polypodium glycyrrhiza -

Western Polypody: Polypodium hesperium -

Paul Slichter E-mail