Taxon  Report   7156    
Robinia pseudoacacia  L.
Black locust
Robinia pseudoacacia
© 2008 Keir Morse
Photos from
CalPhotos / Calflora
Robinia pseudoacacia
© 1998 John Randall, Ph.D.
Robinia pseudoacacia
© 2000 Joe DiTomaso
Robinia pseudoacacia, a dicot, is a tree that is not native to California; it was introduced from elsewhere and naturalized in the wild. Cal-IPC rating: Limited

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Robinia pseudoacacia
© 2008 Jason E. Willand
Family: FABACEAE  
Genus: Robinia
Toxicity: MAJOR (SEEDS)

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Robinia pseudoacacia var. pyramidalis
PLANTS: Robinia pseudoacacia var. rectissima
More information about  Robinia pseudoacacia
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

ResearchGate - Michaela Vítková et al.:  Black locust ... beloved and despised: A story of an invasive tree in Central Europe. We reviewed the ecological and socioeconomic impact of Robinia placing particular emphasis on the species' history, vegetation ecology, invasiveness and management.

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Dec 18, 2018).