One of the most rare and sought after Psilocybe Cubensis amongst hardcore psychonauts. Its name describes it’s physical form; thick shaft and a bulbous head that doesn’t quite spread open. The Penis Envy strain of magic mushrooms are known to be the strongest and hard-hitting type. This strain grows very slow, but the yields are large fruits. Mycologists suggest that its slow growth results in more time for psilocybin production to take place, resulting in a higher potency.