Its considered to be the worlds largest and most foul smelling flower, and for the fourth time in history, one is blooming in Texas. The Corpse Flower, aka Amorphophallus titanum , began blooming yesterday at the Moody Gardens in Galveston. She started cranking out her stench and we compared it to a pile of dead rats, said Donita Brannon, the horticultural exhibits manager of the Rainforest Pyramid at Moody Gardens. It was pretty bad. The plants unusual look and scent has been attracting visitors to the Moody Gardens. Its been steady but not unbearable, Brannon said.