Common Ladyfern, Northwestern Ladyfern, Northwestern Lady Fern
Athyrium filix-femina var. cyclosorum
Synonym: Athryium filix-femina ssp. cyclosorum
Northwestern lady fern growing along the Strawberry Mountain Trail #220 several hundred yards east of the eastern edge of the Mt. St. Helens blast zone, Gifford Pinchot National Forest..........June 21, 2015.
The photo above shows the distinctive shape of the subarctic lady fern as seen in moist coniferous forest at the eastern edge of Swampy Meadows on the western slopes of Mt. Adams........August 11, 2008.
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Northwestern ladyfern as seen on the Pumice Plain (left) and along Trail # 207 about one mile southwest of the Windy Ridge parking area, Mount Saint Helens National Monument...........July 26, 2015.
The photo above shows a cluster of tall, tripinnate
fronds of common lady fern as seen along forest road #150 at the trailhead
for the Snipes Mt. Trail #11 on the southern slopes of Mt. Adams.........October
14, 2005. The fronds of this attractive fern may reach one to two meters in
length.
The photo above shows the upper portion of a frond of lady fern as seen in wetland forest adjacent to Willard Springs in Conboy Lake NWR.........July 31, 2008.
Paul Slichter