The objective of the present study was to inventory the plant resources taken by the coastal populations in the forests of Kigwena and Rumonge, both located in South-West Burundi, which are relatively close but physiognomically different. Eighty and 41 species of medicinal plants; 33 and 25 species for material use, 21 and 23 edible species; 14 and 19 species for energy use as well as 5 and 12 species for cultural use were respectively identified. Among the species harvested; 42.7% and 55.4% respectively serve multiple uses. In the Kigwena forest, the leaves (28%) and the stems (26.7%) are the most targeted while in the Rumonge forest the stems (35.7%) are the most concerned. Edible mushrooms, honey, and termites are also collected from both forests. The latter therefore play an important role in offering local populations opportunities to diversify their incomes (various products marketed along roads or in urban centers), their food and especially their popular pharmacopoeia.