Rafflesia arnoldii
The flower with the world's largest bloom is the Rafflesia arnoldii. This rare flower is found in the rainforests of Indonesia. It can grow to be 3 feet across and weigh up to 15 pounds! It is a parasitic plant, with no visible leaves, roots, or stem.
Yes you are correct emilyoliver, Refflesia arnoldii is the largest flower in the world. This flower looks beautiful too. I really loved the colour and structure of the flower. I dont know the smell of this flower because I didnt see this directly. I saw only pictures.