OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Sapindales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Toxicodendron radicans var. radicans   FAMILY Anacardiaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Toxicodendron radicans ssp. radicans   FAMILY Anacardiaceae

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 110-01-002:

Rhus radicans   FAMILY Anacardiaceae

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Rhus radicans var. radicans

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Rhus radicans var. vulgaris

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)

Toxicodendron radicans

 

COMMON NAME:
Eastern Poison Ivy


         To see larger pictures, click or hover over the thumbnails.

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm191222_2374_t_radicans

    Clay County    AL

Cheaha State Park

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

USDA / Selected Weeds of the US. 1970    swus_page_257

        

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm0404a_29

April    Greenville County    SC

Roadside

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm120424_462

April    Pickens County    SC

Jocassee Gorges

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm120424_478

April    Pickens County    SC

Jocassee Gorges

Note the dense aggregate of fibrous hair-like rootlets attached to tree bark, per Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

Keith Bradley    kab_t_radicans_08107

April    Miami-Dade County    FL

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

Roxanna Martin    rlm42411_13

April    Spartanburg County    SC

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm090503_004

May    Polk County    NC

Trying to disguise itself as Hepatica acutiloba?

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm180515_2243

May    Spartanburg County    SC

Roadside

Can grow as a prostrate ground cover, a low shrub, or a high-climbing vine, per Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

Roxanna Martin    rlm52911_19

May    Spartanburg County    SC

Drupe glabrous to short-pubescent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

Roxanna Martin    rlm5708_086

May    Spartanburg County    SC

Panicles in the lower leaf axils, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    s040515_cdh

May    Greenville County    SC

Bunched Arrowhead Heritage Preserve

Lateral leaflets often assymmetric, per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    s040515_egj

May    Greenville County    SC

Bunched Arrowhead Heritage Preserve

Leaflets entire to serrate to shallowly lobed; lateral leaflets sessile, per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).


click here to see other plants that look similar to this COMPARE leaves of Poison Ivy and others confused with it

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    s040515_ik

May    Greenville County    SC

Bunched Arrowhead Heritage Preserve

Leaves thin, softly hairy and lighter green beneath, per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).


click here to see other plants that look similar to this COMPARE leaves that are trifoliolate and pinnately compound

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm190601_8834

June    Greenville County    SC

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm190601_8836

June    Greenville County    SC

Drupes papillose, scabrous or puberulent, per Weakley's Flora (2018).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm0410g_20

October    Greenville County    SC

Roadside

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm0410g_21

October    Greenville County    SC

Roadside

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm0410k_36

October    Greenville County    SC

Roadside

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    jkm0410m_22

October    Greenville County    SC

Bunched Arrowhead Heritage Preserve

Spherical dry hairless drupe, 4-7mm wide, per Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005).

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

JK Marlow    sbp_110923_3587

November    Spartanburg County    SC

image of Toxicodendron radicans var. radicans, Eastern Poison Ivy

Keith Bradley    kab_t_radicans_9669

December        SC

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Toxicodendron radicans var. radicans   FAMILY Anacardiaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Toxicodendron radicans ssp. radicans   FAMILY Anacardiaceae

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 110-01-002:
Rhus radicans   FAMILY Anacardiaceae

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Rhus radicans var. radicans

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Rhus radicans var. vulgaris

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Toxicodendron radicans

 

Find by SCIENTIFIC NAME:

1238

Shrub; Woody vine
Perennial

Habitat: 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), per Weakley's Flora

Native to the Carolinas & Georgia

Common

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

DOES THE PLANT HAVE "MILKY SAP"?
Has milky sap (latex)

LEAVES:
Deciduous
Odd-pinnately compound: 3 leaflets
Alternate

FLOWER:
Spring
Greenish-yellow/White
4-5 sepals
4-5 petals
4-5 stamens
Usually bisexual

FRUIT:
Summer/Fall
White/Gray
Drupe

 

TO LEARN MORE about this plant, look it up in a good book!



 


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