American Twinflower, Longtube Twinflower, Western Twinflower
Linnaea borealis var. longiflora
Synonyms: Linnaea americana, Linnaea borealis ssp. americana, Linnaea borealis ssp. longiflora, Linnaea borealis var. americana

Close-up of the flower of western twinflower as seen at Peterson Prairie, Gifford Pinchot National Forest..............August 5, 2010.
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Close-up photos of the flowers and leaves of western twinflower as seen at Peterson Prairie, Gifford Pinchot National Forest..........August 5, 2010.
Paul Slichter