NELSON, A. D. .; COTTON, T. .; BROWN, S. .; COWLEY, P. .; HARSLEY, S. . The flora of Erath County, Texas, U.S.A. Journal of the Botanical Research Institute of Texas, [S. l.], v. 15, n. 2, p. 715–737, 2021. DOI: 10.17348/jbrit.v15.i2.1169. Disponível em: https://journals.brit.org/jbrit/article/view/1169. Acesso em: 25 apr. 2024.