Toxicodendron rydbergii
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Toxicodendron rydbergii, the western poison ivy, is a species of Toxicodendron in the cashew family native to North America. As a poison ivy, it can cause urushiol-induced contact dermatitis.
Toxicodendron rydbergii UGA1208036
Berries in winter, Wasatch Range
Poison ivy
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Poison ivy is a type of allergenic plant in the genus Toxicodendron which is native to East Asia and North America. Formerly considered a single species, Toxicodendron radicans, poison ivies are now g
Toxicodendron rydbergii
…Toxicodendron rydbergii, the western poison ivy, is a species of Toxicodendron in the cashew family native to North America. As a poison ivy, it can cause urushiol-induced contact dermatitis. Unlike Toxicodendron radicans (eastern poison ivy), which often appears as a trailing or climbing…
2014 10 29 13 43 39 Poison Ivy foliage during autumn leaf coloration in Ewing, New Jersey
T. radicans vine with typical reddish "hairs"
Large poison ivy vine
Flower detail, with bee