Psilocybe subaeruginosa grows solitary to gregarious from grassy fields, and is occasionally seen on dung. It is common in southern parts of Australia fom April to August. The species is known to grow in Eucalyptus forests, and famously in New Zealand on wood chips.
Usually fruiting during autumn, it’s known for its distinctive appearance, most notably, its caramel brown cap covered in a slight golden hue.
Experts often agree that P. subaeruginosa is one of the most potent species, as it can contain up to 1.93% psilocybin once dried. Plus, several other psychedelic-promoting alkaloids are present in this species, such as baeocystin, nor-psilocybin, and MAOIs.
For comparison, Psilocybe cubensis contains about 1.30% psilocybin when dried.

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