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Dr. Dennis McKenna PhD

Ethnopharmacologist, Research Pharmacognosist and Author


Dennis McKenna is a renowned ethnopharmacologist, botanist, and author who has dedicated his life to exploring the intersection of traditional knowledge, consciousness, and plants. He is the younger brother of the late Terrence McKenna, who was a famous philosopher and writer.

Dennis was born in 1949 in Colorado and received his PhD in Botanical Sciences from the University of British Columbia. He has spent decades researching and studying the indigenous use of psychoactive plants, particularly in the Amazon Basin. He is a well-respected authority on the topic and has written several books, including “The Invisible Landscape: Mind, Hallucinogens, and the I Ching,” which he co-wrote with his brother Terrence.

Throughout his career, Dennis has been an advocate for the responsible use of psychoactive plants and has been a vocal critic of the war on drugs. He has been a keynote speaker at numerous conferences and has taught courses and workshops on ethnopharmacology and plant medicine around the world.

Dennis’ passion for his work is evident in his dedication to preserving traditional knowledge and promoting the responsible use of psychoactive plants. He continues to inspire and educate others through his writing and speaking engagements, making a significant impact on the fields of ethnobotany and consciousness studies.

With his extensive knowledge and experience, Dennis McKenna is a true visionary in the field of plant medicine and consciousness studies. His lifelong pursuit of understanding and exploring the relationship between humans, plants, and consciousness continues to inspire and enlighten us all.