This flower is belong to an interesting plant called the aristolchia Salvador platensis. It is a member of the Aristolochiaceae family which includes over 500 species. Its members are commonly known as birthworts, pipevines or Dutchman's pipes and are widespread and occur in the most of the world's diverse climates.[Image source]

Hope you will enjoy this post, Don't forget to read 10 Rare & Unusual Flowers.