| Scientific Name | Gymnocarpium dryopteris (L.) Newman |
| Family | Cystopteridaceae |
| Common Names | common or northern oak fern |
| Eastern Washington | Native |
| Synonyms | Dryopteris linnaeana C. Chr. Lastrea dryopteris (L.) Bory Phegopteris dryopteris (L.) Fée Polypodium dryopteris L. Thelypteris dryopteris (L.) Slosson |
| Conservation Status | |
| Notes |
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Along Sherman Creek ca. 13 mi W of Kettle Falls, WA (along Hwy 20); N 48.57744 W 118.29131; Ferry Co., 8/5/2016 
10.89 air mi NE of Harvard, ID; E of NF 1433 along Slate Crk; N 46.9996 W 116.53367; Latah Co., 8/15/2016 
Along Sherman Creek ca. 13 mi W of Kettle Falls, WA (along Hwy 20); N 48.57744 W 118.29131; Ferry Co., 8/5/2016 
10.89 air mi NE of Harvard, ID; E of NF 1433 along Slate Crk; N 46.9996 W 116.53367; Latah Co., 8/15/2016 
Along Sherman Creek ca. 13 mi W of Kettle Falls, WA (along Hwy 20); N 48.57744 W 118.29131; Ferry Co., 8/5/2016 
10.89 air mi NE of Harvard, ID; E of NF 1433 along Slate Crk; N 46.9996 W 116.53367; Latah Co., 8/15/2016 
Along Sherman Creek ca. 13 mi W of Kettle Falls, WA (along Hwy 20); N 48.57744 W 118.29131; Ferry Co., 8/5/2016. (2d pair of pinnae – basal basiscopic pinnule about equal to basal acroscopic pinnule) 
Along Sherman Creek ca. 13 mi W of Kettle Falls, WA (along Hwy 20); N 48.57744 W 118.29131; Ferry Co., 8/5/2016 
Along Sherman Creek ca. 13 mi W of Kettle Falls, WA (along Hwy 20); N 48.57744 W 118.29131; Ferry Co., 8/5/2016 
Gymnocarpium disjuncta and G. dryopteris compared