Question:

Hallucinogenic substances can be obtained from the following plants EXCEPT:

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Recall which plants give hallucinogens such as atropine and scopolamine, and how cannabinoids are described in the textbook.
Updated On: Nov 12, 2026
  • Cannabis
  • Atropa
  • Erythroxylum
  • Datura
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The Correct Option is A

Solution and Explanation

Step 1: Understanding the Concept
Several plant alkaloids affect the brain and can cause hallucinations.

Step 2: Check the plants
Atropa belladonna and Datura are known for hallucinogenic alkaloids such as atropine and scopolamine.
Erythroxylum coca gives cocaine, which stimulates the nervous system and in excess produces hallucinations.

Step 3: Cannabis
Cannabinoids from Cannabis sativa are described in the textbook mainly by their effect on the cardiovascular system. So among the given plants, Cannabis is taken as the one not listed as a source of hallucinogens.

Final Answer:
Cannabis is the plant not taken as a source of hallucinogenic substances here. \[ \boxed{\text{(A) }\text{Cannabis}} \]
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