Capitate Sessile Trichomes

Capitate sessile trichomes are small, dome-shaped glandular structures that sit directly on the leaf and flower surface without a stalk, distinguishing them from their capitate-stalked counterparts. These microscopic trichomes contain cannabinoid and terpene-rich resin, making them a primary focus in cannabis breeding and cultivation research. They are commonly observed across various cannabis phenotypes and lineages, though their density and distribution vary significantly between cultivars. Breeders studying trichome morphology note that capitate sessile structures may influence the plant's overall secondary metabolite production profile. Understanding trichome architecture remains central to cannabis genetics documentation and selective breeding programs.

Breeders working in cannabis genetics often assess capitate sessile trichome density and distribution as a marker for resin production potential and cultivar consistency. Trichome phenotyping—including sessile versus stalked morphology—is increasingly integrated into standardized breeding selection criteria.