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

Pacific Oakfern, Western Oak Fern

Gymnocarpium disjunctum

Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum

Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum)

Pacific oakfern as seen in woods around La Wis Wis Campground, Gifford Pinchot National Forest........August 24, 2014.

Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum) - Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum)

Pacific oakfern as seen in coniferous woods along the Sheep Canyon Trail, Mt. St. Helens National Volcanic Monument........August 20, 2017. Foamflower (Tiarelia trifoliata), vanillaleaf (Achlys triphylla), piggyback (Tolmiaea menziesii) and rosy twistedstalk (Streptopus lanceolatus) are all present in the photos.

Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum)

Pacific oakfern as seen along the Toutle Trail #238 between Sheep Canyon and the South Fork Toutle River, Mount Saint Helens National Volcanic Monument..........October 19, 2014.

Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum) - Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum (Synonyms: Dryopteris disjuncta, Gymnocarpium dryopteris ssp. disjunctum, Gymnocarpium dryopteris var. disjunctum, Polypodium dryopteris, Polypodium dryopteris var. disjunctum)

Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum - Pacific Oakfern, Western Oak Fern: Gymnocarpium disjunctum

Pacific oakfern as seen at about 3950' along forest road 551 on the west side of Mt. Adams..........May 30, 2005.

Paul Slichter