UNGBERG, E. A.; HORN, J. W.; POINDEXTER, D. B.; BRADLEY, K. A.; WEAKLEY, A. S. Helianthus waccamawensis (Asteraceae), a new species of sunflower endemic to the Cape Fear Arch Region of North and South Carolina (U.S.A.). Journal of the Botanical Research Institute of Texas, [S. l.], v. 18, n. 2, p. 271–291, 2024. DOI: 10.17348/jbrit.v18.i2.1365. Disponível em: https://journals.brit.org/jbrit/article/view/1365. Acesso em: 22 dec. 2024.