Zhou, W.; Ji, X.; Obata, S.; Pais, A.; Dong, Y.; Peet, R.; Xiang, Q.-Y. (2018). "Resolving relationships and phylogeographic history of the Nyssa sylvatica complex using data from RAD-seq and species distribution modeling". Molecular Phylogenetics and Evolution. 126: 1–16. doi:10.1016/j.ympev.2018.04.001.
friendsofcongaree.org
Cely, John (9 October 2014). "Tupelo Leaves". Friends of Congaree Swamp. Retrieved 4 November 2024.
"swamp blackgum". Louisiana Plant Identification and Interactive Virtual Tours. Louisiana State University School of Renewable Natural Resources. 2020. Retrieved 4 November 2024.
nwwildflowers.com
Tucker, G.C.; Parl, T.J. (2020). "Nyssa biflora vs. Nyssa sylvatica". Flora of North America species comparison. Northwest Wildflowers based on content from the Flora of North America Association. Retrieved 4 November 2024.
USDA NRCS Plant Materials Program (5 February 2002). "Plant Fact Sheet: Swamp Tupelo"(PDF). United States Department of Agriculture, Natural Resources Conservation Service. Retrieved 4 November 2024.