Aristolochia pistolochia is a herbaceous plant in the family Aristolochiaceae endemic to Mediterranean areas across southwest Europe. Leaves are ovate-triangular, sharp to marginalized with cartilaginous margins, with a glaucous underside and very marked nerves. Flowers are yellow on the outside and dark reddish or green on the inside. It is similar to Aristolochia paucinervis, but can be easily distinguished by its thick, jagged leaf border.