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References
- Case, F.W. and Case R.B. 1997. Trilliums. Timber Press. Portland, OR
- Jacobs, D.L. and Jacobs, R.L. 1997. Trilliums in Woodland Garden, American Treasures. Eco-Gardens. Decatur, Georgia.
- FNA. 2002. Flora of North America, Vol. 26: Liliidae. Oxford University Press.