Trichomes are crystalized glands that produce resin on a cannabis plant. Often referred to as 'sticky little hairs,' these glands are not actually hairs or crystals (although they’re still very beautiful close-up). Instead, they’re specific parts of the plant that carry the majority of cannabinoids and cover the cannabis plants' major surfaces. Under a microscope, trichomes look like mini mushrooms, with each section providing certain value to the plant. The head is most valuable and is frequently turned into a quality sieve or water hash.