Büneker, H.M. e Bastianabral, R.E. 2017. Toxonomic novelties in south brazilian amaryllidaceae-I: Hippeastrum ramboi new species from Rio Grande do sul and lectotypification of H. Breviflorum herb. Balduinia. 60 (out. 2017), 01–10. DOI:https://doi.org/10.5902/2358198029456.