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Plant Details

Toxicodendron radicans var. radicans [= Rhus radicans]

Eastern Poison Ivy

Scientific Name:

Toxicodendron radicans var. radicans [= Rhus radicans]

Genus:

Toxicodendron

Species Epithet:

radicans var. radicans

Common Name:

Eastern Poison Ivy

Plant Type

Woody Vine

Life Cycle

Perennial

Plant Family

Anacardiaceae (Cashew Family)

Native/Alien:

NC Native

Size:

3-6 ft., 6-12 ft., 12-36 ft., 36-72 ft.

Bloom Color(s):

Yellow

Light:

Sun - 6 or more hours of sun per day, Part Shade - 2 to 6 hours of sun per day

Soil Moisture:

Moist

Bloom Time:

March, April

Growing Area:

Mountains, Piedmont, Sandhills, Coastal Plain

Habitat Description:

In a wide range of habitats, including mesic forests, rock outcrops, swamp forests, brackish marshes, open areas, disturbed ground, usually in more mesic to hydric sites than T. pubescens, and particularly common in areas with fertile soils, such as bottomlands or over calcareous rocks or calcareous sands (as in maritime forests). Common throughout NC.

Leaf Arrangement:

Alternate

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Compound

Life Cycle:

Perennial

Wildlife Value:

Has some wildlife value

Landscape Value:

Not Recommended for home landscapes

Notes:

Weakley states "It is normally a vine, climbing by adventitious roots, and can attain diameters of 10 cm and climb to the crowns of forest trees. It can also resemble T. pubescens in habit [a shrub], producing numerous meter-high upright stems from rhizomes."
Sap can cause contact dermatitis; all parts of the plant (except the pollen) contain the oil that causes the itchy rash. Never assume you are immune to this plant (or any of the other members of this genus, such as Poison Oak or Poison Sumac).
Var. radicans is the only variety of this species in NC (per Weakley 2015).

Vine

image

Blooms

image

Leaves

Leaves of three let it be!

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Old vine

Note the hairy appearance

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Links:

USDA PLANTS Database Record

Lady Bird Johnson Wildflower Center
Flora of North


Bird-Friendly Native Plants



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