An 81-year-old female patient was examined for acute renal failure. In her renal biopsy, oxalate nephropathy was detected. It was observed that before the deterioration of her renal functions, she had drunk water boiled with leaves of the plane tree which led to change in the color of her urine. Oxalate nephropathy due to consumption of water boiled with the leaves of the plane tree was considered as the diagnosis in the patient, after excluding all known factors regarding secondary oxalate nephropathy. Primary oxalosis was excluded due to the age of the patient. It is the first case to be reported in the literature on oxalate nephropathy due to consumption of plane tree leaves .