 "Plowmanianthus" is a member of the subtribe Dichorisandrinae of the tribe Tradescantieae of the flowering plant family Commelinaceae.It has 5 species and 2 subspecies, all of which were described with the circumscription of the genus itself by Hardy and Faden (2004).Proceeding from the north to south and southeast of the genus's distribution, the taxa are as follows.