References

For Orthosia

Endress, M.E., U. Meve, D.J. Middleton, and S. Liede-Schumann. 2018. Apocynaceae. 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

Fishbein, M. 2023e. Orthosia. 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

Liede-Schumann, S., and U. Meve. 2008. Nomenclatural novelties and one new species in Orthosia (Apocynaceae, Asclepiadoideae). Novon 18: 202-210. Google Scholar

Liede-Schumann, S., and U. Meve. 2024. Toward a revision of the genus Orthosia (Apocynaceae: Asclepiadoideae: Asclepiadeae). Ann. Missouri Bot. Gard. 109(1): 24-147. Google Scholar

Liede, S. 1997b. American Cynanchum (Asclepiadaceae) – a preliminary infrageneric classification. Novon 7: 172-181. Google Scholar