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flourishing poison ivy is supposedly a byproduct of global warming
Close up of western poison ivy, Toxicodendron rydbergii, growing along canal bank. Glen Echo, Maryland, USA.
Leaves. Odina Wodier. Family: Anacardiaceae. A common deciduous tree from the forests of peninsular India. The gum is used for sizing paper.
Poison ivy (Toxicodendron radicans) is a common plant native to North America.  It is well known for causing allergic reactions in humans due to its potent oil called urushiol. The poison ivy plant is a woody vine or shrub that can vary in appearance depending on its growth environment. It usually has three shiny, almond-shaped leaflets arranged in a cluster, with the middle leaflet having a longer stem than the two side leaflets. The leaves can be green during the spring and summer, turning red or orange in the fall.  This poison ivy plant was photographed by the Arizona Trail in the Coconino National Forest near Flagstaff, Arizona, USA.
Poison sumac, Rhus radicans grows as a shrub, but is also able to climb with its roots
Leaves of three, leave them be! Close-up image of a poison ivy plant in the woods
Poison ivy cluster of leaves
Close up of a poison ivy plant in North Carolina, USA.
Poison ivy plant in a forest with pine needles with leaves rim lit by sun low on the horizon behind.
Shiny reddish green poison ivy leaves grow in a Cape Cod garden filled with lily of the valley in mid May.  As the seasons progress the leaves will turn green in the summer and bright red in Autumn.
This is poison ivy.  Dont touch.
Plant sprouts close-up
Poison Ivy plant, forest floor
Shrub and tree leaves. Forest at Paradise Hill in Sigulda
Close-up of Poison Ivy leaves isolated on white background.
Green and red leaves stand on the wall
Macro of two Poison Ivy leaves growing back to back on leafy forest floor
Leaf of a lush tree in the rainforest jungle. The picture is taken in Sepilok in the north eastern part of Borneo.
Poison Ivy, Toxicodendron Radicans, close up view
Close up of the shiny red and green leaves of the toxic, invasive poison ivy plant
Large number of poison ivy plants growing in a forest covered in pine needles.
 Poison Ivy (Toxicodendron radicans) is a plant common throughout North America. It contains a toxic clear liquid compound in its sap called urushiol that causes itching and skin rashes, it is to be avoided at all costs.
Close up of indian ash plant
Poison ivy on the trail: hiking in Southwest USA
Soft focus on poison ivy leaves in the jungle
Image for Gardening with fresh green plants
Poison Oak Leaf blooming In Spring In Northern California  High Quality
Simpoh air (dillenia sufrutticosa) plant.  McRitchie Nature Reserve. Singapore.
Dirca occidentalis, or Western Leatherwood, is a deciduous shrub. Huckleberry Botanic Regional Preserve, Oakland, California. Endemic.
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