- Why plants are so sensitive to gravity, Science Daily
- Araucaria columnaris The Gymnosperm Database
- Tropism in some exotics – Araucaria and Eucalyptus by M. Vaid in The Indian Forester, 1969 95/12 p849-51
- Johns, J.W., Yost, J.M., Nicolle, D., Igic, B. and Ritter, M.K. (2017), Worldwide hemisphere-dependent lean in Cook pines. Ecology, 98: 2482-2484.
See full list of Individual Species References.