Goldback Fern, Gold-back Fern, Gold Fern
Pentagramma triangularis ssp. triangularis
Synonyms: Pentagramma triangularis ssp. semipallida, Pentagramma triangularis ssp. triangularis, Pityrogramma triangularis, Pityogramma triangularis var. 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 the leaf blade of gold-back fern as seen high on the Hamilton Mountain Trail in the western Columbia River Gorge.........February 18, 2010.
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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 fronds emerging from a rock crevice in a cliff next to Eightmile Creek in the Columbia Hills State Park.........February 23, 2010.
Paul Slichter