Back መርዝ ሐረግ Amharic سماق سام متجذر Arabic Toxicodendron radicans Byelorussian Heura metzinosa Catalan Toxicodendron radicans CEB Jedovatec kořenující Czech Almindelig giftsumak Danish Kletternder Giftsumach German Toxicodendron radicans Spanish Roniv mürgipuu Estonian
| Toxicodendron radicans | |
|---|---|
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| During autumn | |
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| In spring, Ottawa, Ontario | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Anacardiaceae |
| Genus: | Toxicodendron |
| Species: | T. radicans
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| Binomial name | |
| Toxicodendron radicans (L.) Kuntze
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| Toxicodendron radicans range map in the United States and Canada | |
| Synonyms | |
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Toxicodendron radicans, commonly known as eastern poison ivy[3] or poison ivy, is a species of allergenic flowering plant. It has numerous subtaxons and forms both vines and shrubs. Despite its common name, it is not a true ivy, but rather a member of the cashew and pistachio family Anacardiaceae. It is different from western poison ivy, Toxicodendron rydbergii, and resembles a number of species.
The species is found in North America. Although commonly eaten by animals, with birds consuming the seeds, T. radicans is considered a noxious weed. As a poison ivy, if causes urushiol-induced contact dermatitis in most people who touch it, producing an itchy, irritating, and sometimes painful rash.
- ^ Bárrios, S. & Copeland, A. (2021). "Toxicodendron radicans". IUCN Red List of Threatened Species. 2021: e.T124270453A192137361. doi:10.2305/IUCN.UK.2021-3.RLTS.T124270453A192137361.en. Retrieved 26 September 2023.
- ^ NatureServe (1 September 2023). "Toxicodendron radicans". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 26 September 2023.
- ^ NRCS. "Toxicodendron radicans". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 11 December 2015.