Physematium oreganum explained

Physematium oreganum, the Oregon cliff fern, is a perennial fern in the family Woodsiaceae.

This plant is native to a large part of the western and northern United States and Canada.^[1]

External links

• Jepson Manual Treatment
• Flora of North America
• Washington Burke Museum
• Photo gallery

Notes and References

1. http://plants.usda.gov/java/ClassificationServlet?source=profile&symbol=WOOR&display=31 USDA PLANTS Profile for W. oregana