poison oak

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English

poison oak leaves

Etymology

Its leaves resemble those of the true oaks, and the leaves and twigs contain urushiol, which can cause allergic reactions.

Noun

poison oak (usually uncountable, plural poison oaks)

  1. Any of the species of Toxicodendron with compound leaves having three oak-like leaflets, native to North America.

Hyponyms

Further reading

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