In this article we will discuss about the classification of Aristolochiales. According to Engler, Aristolochiales consists of three families:- 1. Aristolochiaceae 2. Rafflesiaceae 3. Hydnoraceae. Family # 1. Aristolochiaceae: Aristolochiaceae are herbs or shrubs, climbing or creeping, rarely attaining tree-size; usually more or less foetid. Leaves simple, alternate, exstipulate, with ethereal oil-glands. Flowers of Aristolochiaceae […]