[Ferns East of the Crest of the Cascade Mountains of Oregon and Washington]

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

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

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

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

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