Judi Durber
Member
Pinwheel Cave rock art in California may depict hallucinogenic 'trance flower'
https://www.livescience.com/rock-art-hallucinogen-california.html
or on BBC
https://www.bbc.co.uk/news/world-us-canada-55070442
https://www.livescience.com/rock-art-hallucinogen-california.html
or on BBC
https://www.bbc.co.uk/news/world-us-canada-55070442