Tree-ruffle Liverwort
Porella navicularis
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Tree ruffle liverwort as found on moist cliff faces along the Eagle Creek Trail, Columbia River Gorge National Scenic Area............April 13, 2012.
Tree ruffle liverwort as found on trees on trails at Hamilton Island (formerly Strawberry Island) about a mile downstream from Bonneville Daml, Columbia River Gorge National Scenic Area...........January 20, 2023.
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Several images of tree ruffle liverwort as seen hanging from a horizontal, 3-4" diameter branch of Acer macrophyllum as seen along the lower Cape Horn loop trail, immediately east of the western railroad tunnel entrance, Columbia River Gorge..............Dec 13, 2012.
Paul Slichter