Gilman, Edward F., Ryan W. Klein, and Gail Hansen. “Asclepias Curassavica Butterflyweed, Milkweed, Silkweed: FPS-49/FP049, Rev. 8/2018”. EDIS 2018, no. 4 (August 1, 2018). Accessed March 29, 2024. https://journals.flvc.org/edis/article/view/131204.