Different Types of Glandular Trichomes (IMAGE) University of British Columbia Caption L to R: Stalked, sessile and bulbous glandular trichomes of cannabis plant. Credit Samuels Lab/UBC Usage Restrictions None License Licensed content 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.