'''Prickly ash''' may refer to: * ''Aralia spinosa'', a plant native to eastern North America * ''Orites excelsus'', a plant native to Australia * ''Zanthoxylum'', the genus containing Sichuan pepper (花椒) and the common prickly-ash native to the American Midwest * ''Papilio pelaus'', the prickly ash swallowtail butterfly
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