Glandular Trichome Types

Glandular trichomes are specialized plant structures that produce and accumulate cannabinoids, terpenes, and other secondary metabolites in cannabis flowers and leaves. These microscopic, hair-like outgrowths vary in morphology—commonly categorized as capitate-sessile, capitate-stalked, and bulbous types—each with distinct resin production capacities. The density, size, and distribution of glandular trichomes significantly influence the chemical profile and potency characteristics of different cultivars. Lineage records frequently report that breeders selectively work with trichome phenotypes to develop genetics with desired resin expression. Understanding trichome architecture is foundational to cannabis genetics classification and cultivation research.

Breeders use glandular trichome morphology as a visual and biochemical marker when selecting parent plants for specific resin yields and terpene profiles. Crossing cultivars with robust capitate-stalked trichome development often produces offspring with enhanced secondary metabolite accumulation, making trichome phenotype a key trait in breeding programs focused on extraction and biomass quality.