Poison Ivy

Toxicodendron radicans

no photo — written note
photo: Wikimedia Commons
Plants

Three glossy leaflets on a hairy climbing vine or low ground runner.

Field facts
HabitatEverywhere: woods, trail edges, dunes
RangeStatewide
When to lookLeaves April to October; oil active year-round
StatusSecure (Indiana DNR / IUCN Red List)
Look-alikesVirginia Creeper, Boxelder seedlings, Fragrant Sumac

Field note: Hairy 'rope' vines on tree trunks are poison ivy even without leaves.

Lesson
Watching responsibly

Learn it rather than spraying it; birds eat the white berries all winter.

Urushiol oil causes severe rash and stays active on clothing, tools and pet fur.

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