Oregon cliff fern
Woodsia oregana D.C.Eaton

Woodsia oregana, known as Oregon cliff fern, is a deciduous perennial fern in the family Woodsiaceae. It is native to much of the western and northern United States and Canada.
Description
Woodsia oregana, commonly called Oregon cliff fern, is a species of fern in the family Woodsiaceae. It is a deciduous perennial plant that grows naturally in a large part of the western and northern United States as well as much of Canada. The species was first described by D.C. Eaton in 1865.
Other common names
Oregon cliff fernOregon cliff-fernOregon woodsia
Synonyms
Physematium oreganumWoodsiopsis oreganaPhysematium oreganum subsp. oreganum