Lineage: Green Ghost (7 Ghosts x Bruce Banner 2.0 BX) Seven Ghosts and Bruce Banner #3 came together to form Green Ghost in Theraplant’s breeding labs. Green Ghost’s odor has been described as funky and may lead users to believe that they're catching a whiff of an onion patch. Others find the smell to be appealing in its strength. In other words… it’s LOUD.