Weraroa novae-zelandiae, is a hallucinogenic pouch fungus of New Zealand, it may have been used by the indigenous Tohunga "shaman" of the Iwi (tribe) of New Zealand, though it has not been documented, nor has the use of any psychoactive substances by these people for shamanic purposes.. Recent phylogenetic analysis by Moncalvo (2002) and Bridge et al. (2008) has demonstrated the close relationship between the type species W. novae-zelandiae to the hallucinogenic blue-staining group of Psilocybe, particularly Psilocybe subaeruginosa. W. novae-zelandiae now appears to be only distantly related to other species of Weraroa.