[Cup & Reindeer Lichens : The Genus Cladonia in the Columbia River Gorge of Oregon and Washington]

Greygreen Reindeer Lichen

Cladonia rangiferina

Synonyms: Cladina rangiferina ssp. grisea, Cladina rangiferina

Greygreen Reindeer Lichen: Cladonia rangiferina (Synonyms: Cladina rangiferina ssp. grisea, Cladina rangiferina)

What appears to be grey reindeer lichen growing on mossy, talus slopes several miles up the Eagle Creek Trail, Columbia River Gorge..........April 11, 2013.
Paul Slichter