Toxicodendron radicans - Banner
Image Information
Location: Searcy County, Arkansas
Month of Photograph: May
Distribution Map: Toxicodendron radicans - Distribution Map Spacer
USDA, NRCS. 2012. The PLANTS Database (, 16 January 2012). National Plant Data Team, Greensboro, NC 27401-4901 USA. Spacer Guests can be assured that there is established evidence that this plant has been found in all of the green filled counties of Arkansas. However, the white filled counties should not be interpreted as counties in which this plant does not grow. They should instead be interpreted as counties which lack officially sanction evidence of the plants presence there.

Family: Anacardiaceae

Flower -- Lateral View

Toxicodendron radicans - Flower Lateral View "
Not all images on this page were photographed on the same day or at the same location. The precise location and date that specific photographs were taken can be obtained by email.
Toxicodendron radicans - Inflorescence Inflorescence

For additional images of this species and some textual description be sure to see Dan Tenaglia's "Missouri Plants".

For more detailed textual information see "Encyclopedia of Life".

The U.S. Forest Service offers a detailed fact sheet on the plant.

For a chemist's story about his wife's contact with the plant See "Chemical Space: Exploring the world through the eyes of a chemist."

Toxicodendron radicans - Stem and Inflorescence Stem and Inflorescence
Poison ivy can appear as a hearty, rope-like vine or as an erect woody bush. The thing that will get you scratching is a chemical known as "urushiol". Poison ivy creates this potent stuff from ducts in its phloem - the innermost layer of the bark. These ducts are all over the plant - roots, stems, bark, leaflets, and some parts of the flowers. Pulling roots of poison ivy bare handed from the ground in the winter can leave you puzzling for several days over why your hands itch so.
Toxicodendron radicans - Whole PlantWhole Plant
Toxicodendron radicans - Compound LeafCompound Leaf, adaxial
Toxicodendron radicans - Leaflet Leaflet of Compound Leaf
Toxicodendron radicans - Leaf Tip AdaxialLeaf Tip, abaxial
Toxicodendron radicans - Stem and Inflorescence Stem and Inflorescence
Rachis and Petiole of Compound Leaf
Whole Plant in bloom
Toxicodendron radicans - Whole Plant

Flower, lateral view close up
Toxicodendron radicans - Flower Lateral View