The genus "Chusquea" now includes species formerly classified in "Dendragrostis", "Rettbergia," "Swallenochloa", and "Neurolepis." The genus has been organized into three subgenera, subg. "Rettbergia", subg. "Swallenochloa" and subg. "Chusquea", although molecular evidence only supports a monophyletic subg. "Rettbergia".