Blue-green anise mushroom or aniseed toadstool smells so strongly of anise that its presence is sometimes initially detected by scent rather than observation. As the fungal bodies age, the anise scent diminishes. It is an edible species, though some resources warn that it should only be eaten at maturity, as it may be confused with other species when developing.
The species is widely-distributed, occurring in temperate forests across the Northern Hemisphere. In the western part of North America, it is most often found in coniferous forests. Conversely, it is typically associated with hardwood trees in the east. Given what I know of recent re-examinations of fungal species in North America, additional research is therefore indicated to determine if there are indeed multiple species that look superficially the same.