Corpse flower, Amorphophallus titanum, Grimace. No matter what you call it, it smells. And you should take some time to go see it before it's gone.
Grimace is Nicholas Conservatory's resident corpse flower. It's called that because once the flower is in bloom it gives off the scent of rotting meat or burnt sugar when it opens.
It's a very unusual plant. It will take 7-20 years for a corpse flower to bloom the first time and then it will only bloom once every 3-10 years after that. It's also huge. It can grow up to 10 feet in height and will be several feet in diameter.