Poison Ivy

Common Name: Poison Ivy

Other Names: Poison Mercury

Species Name: Toxicodendron radicans

Plant Type: Woody

Family Name: Anacardiaceae, Cashew Family

Plant Facts
Origin	Native
Duration	Perennial
Distribution in the U.S.	Throughout the country with the exception of the Pacific Coast and the extreme Southwest
Distribution in Oklahoma	Throughout the state

ID Characteristics

Field Identification Characteristics
Vegtative
- Climbing or standing habit
- Iconic “leaves of 3”
- Leaves pointed and varies from smooth edges to moderate lobes
Floral
- Berries in clusters and white in color
Leaf and Stem Characteristics
- Growth Form: Shrubs or woody vines
- Leaf Type: Compound, 1 pinnately
- Leaf Arrangement: Alternate
- Leaf Blade Edge: Coarse, serrated to lobed
- Leaf Blade Length: 6-13 centimeters
Floral Characteristics
- Petal Number: 5
- Flower Color: Greenish white
- Flower Timing: April-June
- Fruit Type: Drupes

Habitat/Ecology
Soil Type	Variable
Habitat	Disturbed sites, roadsides, right-of-ways, fence rows, gravel bars and forest edges
Successional Stage	All

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