Source: California Invasive Plant Council


URL of this page: http://www.cal-ipc.org/ip/management/plant_profiles/Robinia_pseudoacacia.php

Robinia pseudoacacia (black locust)

Robinia pseudoacacia
Robinia pseudoacacia
Photo courtesy Joseph DiTomaso

Robinia pseudoacacia (black locust) is a deciduous tree (family Fabaceae) that grows to 100 feet tall. Historically planted as a landscape tree, black locust has escaped cultivation and become invasive in California and elsewhere. It can grow on a wide range of sites, but grows best on rich, moist, limestone-derived soils. It does not do well on heavy or poorly drained soils, although it appears to be tolerant of some flooding. Through root sprouts and seedling establishment, black locust creates large stands that displace native vegetation. Its seeds, leaves, and bark are toxic to humans and livestock.

Cal-IPC Inventory rating: Limited

Cal-IPC Resources on Robinia pseudoacacia

Cal-IPC News Articles

  • Connick, S. and M. Gerel (2005). Don't sell a pest: A new partnership to prevent plant invasions through horticulture. Cal-IPC News. 13: 4-5,14.

Cal-IPC Symposium Proceedings

  • Connick, S. and M. Gerel (2004). Partnering to prevent invasions of plants of horticultural origin. California Invasive Plant Council Symposium 2004. Ventura, CA.
  • Hunter, J. C., J. C. Sterling, et al. (2003). The abundance and distribution of non-native woody species in Sacramento Valley riparian zones. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
  • Reichard, S. H. (1996). What traits distinguish invasive plants from non-invasive plants? California Exotic Pest Plant Council Symposium '96. San Diego, CA.

Other Resources on Robinia pseudoacacia