The Pelican Flower is a Central American vine with huge flowers that bloom for just two days before they wilt and die.
The first day is spent using the stench of death and decay to attract flies which get trapped overnight within the depths of the flower. They’re only let out the next day, after a dowsing of pollen, so they can get trapped by a whole new flower and pollinate it in the process.
Pelican Flowers get their name from looking a bit like a pelican from the side. I guess Malevolent Alien Chrysalis Flower didn’t catch on.