The Titan Arum, or "corpse flower," is the world's largest flower, with blooms that can have a diameter of well over a metre.The Titan Arum's natural home is the equatorial rainforest of central Sumatra, in Indonesia.
It is also very rare. The fully open flower emits a repulsive, 'rotting-fish' scent. This odour is to attract pollinators which, where it lives, are mainly carrion beetles and flesh flies.
The giant 'corpse flower' blooms only occasionally in captivity, and its blooming, which only lasts a day or two, is usually a sensation.