Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocy


Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals). Glandular cells called trichomes are also present. These are capitate trichomes that have stalks. These trichomes secrete a resin containing tetrahydrocannabinol, the active component of cannabis when used as a drug.


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Photo credit: © STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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