Spreading Woodfern, Spreading Wood Fern, Northern Woodfern
Dryopteris expansa
Synonyms: Dryopteris assimilis, Dryopteris dilatata, Dryopteris dilitata var. americana, Nephrodium expansum
![Close-up of sporecases of Dryopteris expansa](../../../cascade/fern/dryopteris/expansa/expansa1d.jpg)
This photo shows a close-up of the underside of the frond of spreading woodfern as seen along trail ##3385 in meadows about one-quarter mile north of Moon Point in the Willamette National Forest.........July 12, 2008.
![Underside of frond of Dryopteris expansa](../../../cascade/fern/dryopteris/expansa/expansa1c.jpg)
This photo shows another close-up of the underside of the frond of spreading woodfern as seen along trail ##3385 in meadows about one-quarter mile north of Moon Point in the Willamette National Forest.........July 12, 2008.
![Frond of spreading woodfern: Dryopteris expansa](../../../cascade/fern/dryopteris/expansa/expansa1a.jpg)
This photo shows the frond of spreading woodfern as seen along trail ##3385 in meadows about one-quarter mile north of Moon Point in the Willamette National Forest...........July 12, 2008.
![Frond of Dryopteris expansa](../../../cascade/fern/dryopteris/expansa/expansa1b.jpg)
This photo shows the frond of spreading woodfern as seen along trail ##3385 in meadows about one-quarter mile north of Moon Point in the Willamette National Forest..........July 12, 2008.
Paul Slichter