The titan arum or Amorphophallus titanum (from Ancient Greek amorphos, "without form, misshapen" + phallos, "phallus", and titan, "giant") is a flowering plant with the largest unbranched inflorescence in the world. (The largest single flower is borne by the Rafflesia arnoldii; the largest branched inflorescence in the plant kingdom belongs to the Talipot palm, Corypha umbraculifera).
Due to its odor, which is reminiscent of the smell of a decomposing mammal,[1] the titan arum is also known as a carrion flower, the "Corpse flower", or "Corpse plant" (Indonesian: bunga bangkai – bunga means flower, while bangkai means corpse or cadaver; for the same reason, the same title is also attributed to Rafflesia which, like the titan arum, also grows in the rainforests of Sumatra).
Thanks 
