With the aim of contributing to the study of urinary lithiasis in eastern Algeria, we investigated the importance of medicinal plants recognized as effective by the region's local population. To this end, we carried out a descriptive ethnobotanical survey in the urology departments of the five university hospitals in eastern Algeria. We identified 32 plants belonging to 19 botanical families, including Zilla spinosa (L.) Prantl, known as "Chebreg" or "Aftazen".