A new species, Rohdea maoershanensis, endemic to the Mao’er Mountain National Nature Reserve in northern Guangxi, is described herein. It is morphologically similar to R. chinensis, R. jinshanensis, and R. chlorantha, but it is easy to distinguish from the latter three because of leaves 9–13, linear, length of peduncle about 22 cm, length of bract about 3 mm, triangular lanceolate, filament base enlarged and connected to form a rough annular appendage, ovary is flattened spherical shape. Following the IUCN Red List Categories and Criteria (Version 3.1) [C2(a)(ii)], the species is preliminarily classified as Endangered (EN).