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Plant Details

Toxicodendron radicans var. radicans [= Rhus radicans]

Eastern Poison Ivy

Scientific Name:

Toxicodendron radicans var. radicans [= Rhus radicans]

Common Name:

Eastern Poison Ivy

Plant Family

Anacardiaceae (Cashew Family)

Native/Alien:

NC Native

Type:

Woody Vine

Bloom Color(s):

Yellow

Size in Feet:

Long

Light:

Sun - Shade

Soil Moisture:

Mesic(*)

Bloom Time:

April - May

Bloom Area:

Statewide (Mountains, Piedmont, Coast)

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.

State Rank:

No NC Rank Listed (*)

Global Rank:

No Global Rank listed (*)

State Status:

No NC Status Listed (*)

Federal Status:

No U.S. Status Listed (*)

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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