Chloris divaricata R. Br. and its variety C. divaricata cynodontoides (Bal.) Lazarides (Poaceae) have become naturalized in Taiwan. Chloris divaricata, which was misidentified as Chloris divaricata var. cynodontoides, was annotated. Chloris divaricata var. cynodontoides was discovered in the Penghu archipelago in a recent botanical survey. Descriptions, color photos, an illustration, and a distribution map of Chloris divaricata and its variety cynodontoides are offered.