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Woody > Toxicodendron > Toxicodendron radicans > Toxicodendron radicans

Toxicodendron radicans


Poison Ivy




Origin:  North America.
Family
Anacardiaceae
Genus
Toxicodendron
Species
radicans
Category
Woody
Type
Shrub (deciduous), Vine
USDA Hardiness Zone
5
Canadian Hardiness Zone
4 - 6a
RHS Hardiness Zone
H7
Temperature (°C)
-29 - (-23)
Temperature (°F)
-20 - (-10)
Height
2 m
Photographs
Description and Growing Information
Flowering Period
MayJuneJuly
General Description
Well known for causing an unpleasant itching and on occasion, painful rash in most who touch the plant. Easily recognized with its shiny and irregulartoothed leaves in groups of 3 and greyish-white berries.
Landscape
Not recommended.
Cultivation
Handle only with gloves and avoid in garden situations unless labelled and out of reach.
Shape
Mat-forming.
Growth
Fast
ID Characteristic
Shiny and irregularly-toothed leaves in groups of 3 and greyish-white berries.
Pests
None known.
Habitat
Forest floors and forest edges.
Leaf Description
Trifoliate with three almond-shaped leaflets, ranging from light to dark green.
Flower Description
Yellowish or greenish-white flowers are inconspicuous and are located in clusters up to 8 cm above the leaves.
Fruit Description
Berry-like fruit mature from August to November that are greyish-white colour.
Notable Specimens
Joany's Woods, West Williams, Middlesex County, Ontario, Canada.
Ethnobotanical Uses (Disclaimer)
May cause severe spreading dermatitis with direct or indirect contact due to presence of 3-n pentadecycatechnol.
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