Objectives: To document traditional antimalarial plants used by Tetun ethnic people in West Timor Indonesia and evaluate the antiplasmodial activity and phytochemicals of several plants that are widely used as oral medicine.
Materials And Methods: A field study to document antimalarial plants followed by laboratory works to test antiplasmodial activity and identify the phytochemical constituents of some selected plants extract were applied. The inhibitory potency of ethanolic extracts of wood, roots of , , and , whole plant of and , stem barks of , , and , and leaves of on the 3D7 strain were tested.