[Ferns West of the Cascade Mountains of Oregon and Washington]

Northern Fern, Northern Woodfern, Spreading Woodfern, Spreading Wood Fern

Dryopteris expansa

Synonyms: Dryopteris assimilis, Dryopteris austriaca, Dryopteris carthusiana, Dryopteris dilatata, Dryopteris dilitata var. americana, Nephrodium expansum

Northern Fern, Northern Woodfern, Spreading Woodfern, Spreading Wood Fern: Dryopteris expansa (Synonyms: Dryopteris assimilis, Dryopteris austriaca, Dryopteris carthusiana, Dryopteris dilatata, Dryopteris dilitata var. americana, Nephrodium expansum) - Northern Fern, Northern Woodfern, Spreading Woodfern, Spreading Wood Fern: Dryopteris expansa (Synonyms: Dryopteris assimilis, Dryopteris austriaca, Dryopteris carthusiana, Dryopteris dilatata, Dryopteris dilitata var. americana, Nephrodium expansum)

Spreading woodfern observed along the Fort to Sea Trail, Lewis and Clark National Historic Park......January 11, 2019.

Northern Fern, Northern Woodfern, Spreading Woodfern, Spreading Wood Fern: Dryopteris expansa (Synonyms: Dryopteris assimilis, Dryopteris austriaca, Dryopteris carthusiana, Dryopteris dilatata, Dryopteris dilitata var. americana, Nephrodium expansum)

What may be spreading woodfern growing on the bank of a creek along the trail from Ozette to Cape Alava, Olympic National Park..........July 26, 2014. Unfortunately, there was no good access to view the ferns at a closer distance.

Northern Fern, Northern Woodfern, Spreading Woodfern, Spreading Wood Fern: Dryopteris expansa (Synonyms: Dryopteris assimilis, Dryopteris austriaca, Dryopteris carthusiana, Dryopteris dilatata, Dryopteris dilitata var. americana, Nephrodium expansum)

What may be spreading woodfern growing on the bank of a creek along the trail from Ozette to Cape Alava, Olympic National Park..........July 26, 2014.
Paul Slichter