1. Francis, J. K. UNDATED. R. communis L. castor bean. Research Forester, U.S. Department of Agriculture, Forest Service.
2. Langeland, K. A., and R. K. Stocker. UNDATED. Control of Non-native Plants in Natural Areas of Florida. University of Florida Extension Institute of Food and Agricultural Sciences: SP 242.
3. Tunison, J. T., and N. G. Zimmer. UNDATED.Success in Controlling Localized Alien Plants in Hawaii Vokanoes National Park.
The Global Invasive Species Database is managed by the
Invasive Species Specialist Group (ISSG) of the IUCN Species
Survival Commission. It was developed as part of the global
initiative on invasive species led by the Global Invasive
Species Programme (GISP) and is supported through partnerships
with the National Biological Information Infrastructure,
Manaaki Whenua-Landcare Research and the University of
Auckland. Conditions of use.