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
Cultivars
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Description and Growing Information
Flowering Period
| 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 irregular toothed 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 pentadecyl catechol. |
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