This part of the flora treatment for the Cyperaceae occurring in the Democratic Republic of the Congo, Rwanda and Burundi deals with three tribes that have only few representatives in the flora region: Trilepideae, Cladieae and Carpheae. Tribe Trilepideae comprises 2 genera and 3 species, while tribes Cladieae and Carpha are each represented by a single genus and species. Each species treatment comes with a full description, synonyms, data on their distribution, habitat, conservation, vernacular names and uses, as well as references to additional literature and the citation of representative specimens. User-friendly keys to all genera and species are provided, along with five detailed line drawings to assist species recognition.