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Poison ivy (Toxicodendron radicans, common synonym: Rhus rad-
icans) is a poisonous climbing vine with aerial rootlets and slight-
ly hairy or bald shoots from the Cashew family (Anacardiaceae).
It is, however, not related to true species of ivy. Some species
of Anacardiaceae provide edible fruits and seeds, and some
species are decorative. Some of the best known from around
the world includes mango, pistachio, cashew and Brazilian
peppertree.
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