- North Carolina State University, Extension Gardener, online resource
- Plants of the World Online, from Kew Science
- Thien, Leonard B. “Floral Biology of Magnolia.” American Journal of Botany, vol. 61, no. 10, 1974, pp. 1037–1045
- Southern Magnolia, Plant Guide, US Dept. of Agriculture, pdf
See full list of Individual Species References.