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Project Noah Nature School
Usnea filipendula
Spotted on top of Kennesaw Mountain
Species of Usnea contain usnic acid, which has well documented antibiotic properties. Usnea has been used medicinally since ancient times (in Greece and China at least) and throughout the world, except, apparently, in Australia.
Spotted on Feb 20, 2013
Submitted on Feb 21, 2013
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