Contains 4 accepted taxa overall.

Characteristics
Toxicodendron Mill.
POISON OAK
Classification
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SAPINDALES
Toxicodendron
Citation
TOXICODENDRON Miller, Gard. Dict. Abr., ed. 4. 1754.
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TYPE: Toxicodendron pubescens Miller (Rhus toxicodendron Linnaeus) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 483. 1913.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Toxicodendron pubescens Poison Oak
Toxicodendron radicans var. negundo Midwestern Poison Ivy
Toxicodendron radicans var. radicans Eastern Poison Ivy
Toxicodendron vernix Poison Sumac, Thunderwood
Identification Key
1.  Shrubs to small trees; leaves mostly with 7-15 leaflets
1.  Vines or low shrubs; leaves with 3 leaflets
2
2.  Leaflets mostly broadly elliptic to obovate in outline, widest at or above the middle, the tip truncate, rounded, to obtuse, without tufts of trichomes in the vein axils
2.  Leaflets mostly ovate, widest below the middle, the tip acute to acuminate, with tufts of trichomes in the vein axils of the lower surface
Genus Synonyms
Synonym Full Citation Basionym Type
No synonyms found.