March 18
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Plant Species of the genus Toxicodendron

Information about this genus
Name: Toxicodendron
Cultivation: CULTIVATION: Frost hardy, these plants require full sun and a well-drained soil. Locate as background plants away from lawns or walkways, where people are least likely to touch them. Propagate from seed in summer, or cuttings.
Description: Widely distributed in temperate and subtropical regions of North America and East Asia, this is a genus of 6 to 9 species of trees, shrubs and woody climbers containing a milky or resinous sap that is highly caustic and capable of producing dermatitis or a severe allergic reaction in susceptible people. It is very closely related to Rhus and some highly noxious species that were previously included in Rhus have been transferred to this genus, including the poison ivy of North America, Toxicodendron radicans. The cultivation of a few species is prohibited in some places; however, when Toxicodendron species are cultivated, they are grown mainly for their brilliantly colored autumn foliage and sometimes ornamental fruit.

Specie Vernacular Zone
pubescens Atlantic poison oak
radicans eastern poison ivy
rydbergii western poison ivy
Toxicodendron succedaneum 5-10
Toxicodendron vernicifluum 5-9
vernix poison sumac

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