Capitate Stalked Trichomes

Capitate-stalked trichomes are glandular structures featuring a thin stalk (or stem) topped with a larger, bulbous head containing cannabinoid and terpene-rich resin. These multicellular trichomes are commonly associated with higher cannabinoid expression and are frequently observed across diverse cannabis chemotypes. The stalk elevates the resin head away from the leaf surface, distinguishing this morphology from the smaller capitate-sessile type. Capitate-stalked trichomes develop most prominently on floral bracts and upper leaves as plants mature. Breeders and researchers often reference trichome morphology—including stalk density and head size—when documenting phenotypic variation and genetic stability within breeding lines.

Breeders working in resin phenotype selection frequently assess capitate-stalked trichome prominence as a marker of genetic expression potential. Trichome structure, including stalk development, is monitored across generations to maintain or enhance desired chemotype characteristics in curated breeding programs.