- Celesti-Grapow, Laura & Pretto, Francesca & Brundu, Giuseppe & Carli, Emanuela & Blasi, Carlo. (2009). Plant invasion in Italy – an overview.
- Effects of castor oil, Fascist postcard Italy 1921
- R. Sasidharan, R. Venkatesan, Seed Elaiosome Mediates Dispersal by Ants and Impacts Germination in Ricinus communis; Frontiers in Ecology and Evolution Vol 7, 2019 p246
- V. F. Martins, P. R. Guimarães, C. R. Baptista Haddad, and J. Semir. “The Effect of Ants on the Seed Dispersal Cycle of the Typical Myrmecochorous Ricinus communis.” Plant Ecology 205.2 (2009): 213-22.
- Castor oil – Overview, Science Direct, online resource
- Patel VR, Dumancas GG, Viswanath LCK, Maples R, Subong BJJ. Castor Oil: Properties, Uses, and Optimization of Processing Parameters in Commercial Production. Lipid Insights. January 2016
- Celesti-Grapow, Laura & Pretto, Francesca & Brundu, Giuseppe & Carli, Emanuela & Blasi, Carlo. (2009). Plant invasion in Italy – an overview..
- Scarpa, Antonio & Guerci, Antonio. (1982). Various uses of the castor oil plant (Ricinus communis L.). A review. Journal of ethnopharmacology. 5. 117-37
See full list of Individual Species References.
Please also refer to the General Bibliography and Online Resources.