Cannabis sativa trichomes (image) University of Saskatchewan Share Print E-Mail Caption Cannabinoids are produced on the flowers of the female plant of Cannabis sativa in tiny hair-like structures called trichomes, the plant's own "chemical factories." Credit Jon Page (UofS/NRC), Klaus Adler (IPK-Gatersleben, Germany) Usage Restrictions Image credit must accompany image. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.