RAMÍREZ-NOYA, David; GONZÁLEZ-ELIZONDO, M. Socorro; MOLINA-TORRES, Jorge. Heliopsis suffruticosa (Compositae, Heliantheae), a new species from western Zacatecas. Acta Botanica Mexicana, [S. l.], n. 97, p. 39–47, 2011. DOI: 10.21829/abm97.2011.248. Disponível em: https://abm.ojs.inecol.mx/index.php/abm/article/view/248. Acesso em: 12 nov. 2026.