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 American Midwest invasive species
- Papilio pelaus, the prickly ash swallowtail butterfly
This disambiguation page lists articles associated with the title Prickly ash.
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