It depends on what area of plant species you are looking at.
In general, the Rafflesia flower can be as large as 39" wide whereas the largest sunflower on record is only 32.5" wide. However, the Rafflesia is a parasistic plant, meaning it gets its nutrients off another host instead of the soil-root system. in my opinion, therefore, I do not consider the Rafflesia a "true flower".
I would also like to mention that the sunflower record for height is 25.5 feet tall, and the record number of flowers on a single plant stands at 837 heads.
The worlds biggest flower is Rafflesia arnoldii or the Titan Arum found in the Indonesian rainforests.
largest flower in world is Rafflesia armondi the diameter of this flower is one and a half meter long smallest flower in world is Woiffia microscopica
no they don't smell
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. It attaches itself to a host plant to obtain water and nutrients. When in bloom, the Rafflesia emits a repulsive odor, similar to that of rotting meat. This odor attracts insects that pollinate the plant. Another enormous flower found in Indonesia is the Amorphophallus titanum, or Titan arum. It is also known as the "corpse flower" for its unpleasant odor. Like the Rafflesia, the Titan emits the smell of rotting flesh to attract pollinators. Technically, the Titan arum is not a single flower. It is a cluster of many tiny flowers, called an inflorescence. The Titan arum has the largest unbranched inflorescence of all flowering plants. The plant can reach heights of 7 to 12 feet and weigh as much as 170 pounds!
the worlds biggest yoyo is about the size of a hobo
The Catholic Church is the biggest charity in the worlds.
The Amazon is the worlds biggest rain forest
There are no flowers that rhyme with the word worlds.
The worlds biggest island is clearly Green Land its PNG
The worlds biggest selling drink is both Milk and water.
the worlds biggest volcano is Mauna Lao is in Hawaii
The worlds biggest tin sheep here