Calflora
Taxon  Report   161    
Ailanthus altissima  (Mill.) Swingle
Ailanthus,  Tree of heaven
Ailanthus altissima, a dicot, is a tree that is not native to California; it was introduced from elsewhere and naturalized in the wild. Cal-IPC rating: Moderate
Observation Hotline
(observation details)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: SIMAROUBACEAE  
Genus: Ailanthus
Toxicity: MINOR, DERMATITIS

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: disturbed

Communities: weed, characteristic of disturbed places

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Ailanthus glandulosa
PLANTS: Toxicodendron altissimum
More information about  Ailanthus altissima

Conservation New England:  Ailanthus altissima is native to Asia, and began its journey west by being introduced to Europe in 1751 by a French Jesuit preist who brought it from Nanking, China to England. The first known specimen was brought into the United States a few decades later by William Hamilton, who planted this species in Philadelphia (Shah 1997). People admired the beautiful foliage of these fast-growing trees, and for over a century have been planting it as an ornamental ...


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Mar 20, 2019).