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 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 as seen at left along the Toutle Trail #238 between Sheep Canyon and the South Fork Toutle River, Mount Saint Helens National Volcanic Monument..........October 19, 2014. The photo at right shows Pacific oakfern as seen along the Thomas Lake Trail, Indian Heaven Wilderness......August 20, 2024.
- 
- 
Pacific oakfern as seen at about
3950' along forest road 551 on the west side of Mt. Adams..........May
30, 2005.
Paul Slichter