[Ferns West of the Cascade Mountains of Oregon and Washington]

Gold-back Fern, Gold Fern

Pentagramma triangularis ssp. triangularis

Synonym: Pityrogramma triangularis

Dorsal blade surface of Gold-back Fern, Gold Fern: Pentagramma triangularis ssp. triangularis (Synonym: Pityrogramma triangularis)

Dorsal surface of the leaf blade of gold-back fern as seen high on the Hamilton Mountain Trail in the western Columbia River Gorge........February 18, 2010.

Ventral surface of leaflets of Gold-back Fern, Gold Fern: Pentagramma triangularis ssp. triangularis (Synonym: Pityrogramma triangularis)

Ventral surface of the leaf blade of gold-back fern as seen high on the Hamilton Mountain Trail in the western Columbia River Gorge.........February 18, 2010.

Gold-back Fern, Gold Fern: Pentagramma triangularis ssp. triangularis (Synonym: Pityrogramma triangularis) - Gold-back Fern, Gold Fern: Pentagramma triangularis ssp. triangularis (Synonym: Pityrogramma triangularis)

Goldback fern with new growth (left) from a crack in a basalt cliff above the Crawford Oaks trailhead, Columbia Hills State Park..........October 26, 2014. The photo at right shows goldback ferns on a basalt outcrop at the south side of Horsethief Butte, Columbia Hills State Park.........January 18, 2016.

Gold-back Fern, Gold Fern: Pentagramma triangularis ssp. triangularis (Synonym: Pityrogramma triangularis)

Gold-back fronds emerging from a rock crevice in a cliff next to Eightmile Creek in the Columbia Hills State Park.........February 23, 2010.

Paul Slichter