Klamath Mountain Mahogany, Plume Tree
Cercocarpus betuloides var. macrourus

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Klamath mountain mahogany observed on Rhyolite Ridge about one-quarter of a mile west of Pilot Rock, Cascade-Siskiyou National Monument.....May 26, 2021. This variety of mountain mahogany has longer blades 27-20 mm) than var. betuloides (10-27 mm).
Paul Slichter