Lecanorchis flavicans Fukuy. var. acutiloba T. Hashim. (Orchidaceae) is reported as a newly recorded species in Taiwan. It is most similar to L. triloba J. J. Sm. but can be distinguished by its 3–5-flowered inflorescences, longer tepals and lip without a pair of calli on the disc. In this study, we provide a description, illustration and distribution map of L. flavicans var. acutiloba.