The xerophilic groves of Bugesera are located a The xerophilic groves are scattered over several hills. Taking into account the floristic composition, a distinction is made between:
- groves with Grewia mollis and Pappea capensi; - groves with Olea europaea subsp.
Africana;
- the groves of Grewia mollis and Zizyphus micronata; - the groves of Pappea capensis and Celtis africana.

Xeric lawns are encountered in areas in an advanced state of degradation. Sometimes the lawns are interspersed between the groves. Xerophilic groves are individualized in a plant cover that is very poor in Brachiaria humidicola. Other secondary woody species present include Acacia hebecladoides, Euphorbia candelabrum, Cadaba farinosa, Capparis tomentosa, Cissus quadrangularis, Securinega virosa, Securinega virosa, Dicrostachys cinerea.