western poison ivy

English

Noun

western poison ivy (uncountable)

Toxicodendron rydbergii, an ivy-like species of Toxicodendron common in the western United States, well-known for its ability to causes an itching rash and blistering for most people, through urushiol, an oil that is a skin irritant.

Coordinate terms

(ivy-like plant producing skin irritant): Toxicodendron radicans (eastern poison ivy), Toxicodendron orientale (Asian poison ivy)

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