[Ferns East of the Crest of the Cascade Mountains of Oregon and Washington]

Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern

Woodsia oregana ssp. oregana

Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana

What appears to be Oregon cliff fern with new spring growth atop rock outcrops around Jackman Park, Steens Mountain, Harney County of southeastern Oregon.........June 2, 2012.

Sori of Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana

A close-up of the sori of Oregon wood fern as seen on Strawberry Mountain, Strawberry Mountain Wilderness.........August 18, 2011. Although not the clearest photo, one can see the thread-like segments of the indusia around some of the sori.

Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana

Ventral surface of a frond of Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana - Dorsal surface of a frond of Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana

Additional close-ups of Oregon wood fern as seen on Strawberry Mountain (same location as on August 18, 2011), Strawberry Mountain Wilderness..........August 3, 2011.

Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana - Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana

Oregon cliff fern as seen on rocky slopes above the east bank of the John Day River about two and one-half miles downstream of Oregon Highway206 in Cottonwood Canyon State Park and adjacent BLM lands..........April 9, 2016.

Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana - Oregon Cliff Fern, Oregon Woodsia, Western Cliff Fern: Woodsia oregana ssp. oregana

Oregon cliff fern as seen at left on cliffs along Eightmile Creek in the Columbia Hills State Park..........February 23, 2010. Note the dried remains of the rachis' of the previous season's fronds. The photo at right shows what is probably Oregon cliff fern on rock outcrops along the Skyline Trail #285 between the High Lake Rim Trailhead and High Lake, Strawberry Mountain Wilderness.....July 8, 2023.

Paul Slichter