Henk Beentje & S.A. Ghazanfar 
Flora of Tropical East Africa [PDF ebook] 
Cyperaceae

The Flora of Tropical East Africa is a descriptive, extensively illustrated account of the flowering plants and ferns native and naturalized in Kenya, Tanzania and Uganda, together with information on exotic ornamental and crop plants. At least one species of each genus is illustrated with a fully annotated, and the bibliography and synonymy are sufficiently detailed to explain the nomenclature and taxonomic circumscriptions within a broad regional context.This part is devoted to the substantial family of Cyperaceae – or sedges.