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Emre E.

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Toxicodendron radicans

Eastern Poison Ivy

The subject is a small plant identified as Eastern Poison Ivy. This identification is based on the classic trifoliate leaf structure, where each leaf consists of three leaflets. The central leaflet is on a noticeably longer stalk than the two lateral leaflets, and the leaflet margins are irregularly toothed, which are key diagnostic features for this species. The plant is a young seedling growing in a mulched bed.

Caution

Irritant

May cause skin or eye irritation on contact.

Overview

Conservation

Not at risk

Toxicodendron radicans, commonly known as eastern poison ivy 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 sumac family, Anacardiaceae. It is different from western poison ivy, Toxicodendron rydbergii, and resembles a number of species.

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Observation

Observed

August, 9:44 AM

Shared

August 14, 2026

Also known as

Eastern Poison Ivy
Poison Ivy
Sister Ivy

Taxonomy

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Sapindales

Family

Anacardiaceae

Genus

Toxicodendron