Common Ladyfern, Northwestern Ladyfern, Northwestern Lady Fern: Athyrium filix-femina var. cyclosorum (Synonym: Athryium filix-femina ssp. cyclosorum)

Northwestern lady fern growing at left 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 at center 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. The image at right shows a frond of lady fern as seen along the Thomas Lake Trail, Indian Heaven Wilderness....September 17, 2025.

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 at left 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 imge at right shows a younger lady fern as observed in coniferous forest with foamflower (Tiarella trifoliata var. unifoliata) and pathfinder (Adenocaulon bicolor) along the Dry Creek Trail #194, Gifford Pinchot Nationl Forest......September 27, 2025.

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.