SPELLENBERG, R. W.; ANDERSON, E. W. Astragalus pilosior (Fabaceae), a new species from the Sierra Madre Occidental in Chihuahua, Mexico. Journal of the Botanical Research Institute of Texas, [S. l.], v. 13, n. 1, p. 131–140, 2019. DOI: 10.17348/jbrit.v13.i1.833. Disponível em: https://journals.brit.org/jbrit/article/view/833. Acesso em: 21 jan. 2025.