Lourenço Brandão, J., Sidney Baracho, G., Ferreira De Sales, M. & Paulino Viegas Filho, M. (2017)

Synopsis of Sida (Malvaceae, Malvoideae, Malveae) in the state of Pernambuco, Brazil

. Phytotaxa 307 (3): 205–227. https://doi.org/10.11646/phytotaxa.307.3.5