Toxicodendron rydbergii
| Toxicodendron rydbergii | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Sapindales | 
| Family: | Anacardiaceae | 
| Genus: | Toxicodendron | 
| Species: | T. rydbergii | 
| Binomial name | |
| Toxicodendron rydbergii | |
| Synonyms | |
| 
 | |
Toxicodendron rydbergii, the western poison ivy or northern poison oak, is a species of Toxicodendron in the cashew family native to North America. As a poison ivy, it can cause urushiol-induced contact dermatitis.