Piperales's a botanical name for an order of flowering plants. It necessarily includes the family Piperaceae but otherwise has been treated variously over time. Well-known plants which may be included in this order include black pepper, kava, lizard's tail, birthwort, and wild ginger. Classification APG system In the APG II system, of 2003, this order's placed in the clade magnoliids and's circumscribed as follows: order Piperales » family Aristolochiaceae: family Hydnoraceae » family Lactori… (More on Piperales)