References

For Eustoma

Barnhart, J.H. 1907. The dates of Rafinesque's New Flora and Flora Telluriana. Torreya 7(9): 177-182. Google Scholar

Drake, J. 2011. Gentians of the eastern United States. Breath O' Spring Press, Suwanee, GA. 219 pp. Google Scholar

Pringle, J.S. 2023. Gentianaceae. Pp. 3-92 In Flora of North America Editorial Committee. 2023c. Flora of North America north of Mexico. Volume 14, Magnoliophyta: Gentianaceae to Hydroleaceae. Oxford Univ. Press, New York, NY. 505 pp. Google Scholar

Shinners, L.H. 1957. Synopsis of the genus Eustoma (Gentianaceae). Southwestern Naturalist 2: 38-43. Google Scholar

Struwe, L., and J.S. Pringle. 2018. Gentianaceae. In Kadereit, J., & V. Bittrich. 2018. The families and genera of flowering plants. XV. Flowering plants. Eudicots. Apiales, Gentianales (except Rubiaceae). Springer, Cham. Google Scholar

Turner, B.L. 2014. Taxonomic overview of Eustoma (Gentianaceae). Phytologia 96: 7-11. Google Scholar

Wood, C.E., and R.E. Weaver, Jr. 1982. The genera of Gentianaceae in the southeastern United States. J. Arnold Arb. 63: 441-487. Google Scholar