Capitate Sessile Trichomes

Capitate-sessile trichomes are small, bulbous glandular structures found on cannabis flower and leaf surfaces, characterized by a short stalk or no stalk beneath a resin-filled head. These microscopic trichomes contain cannabinoids and terpenes but in lower concentrations than their larger capitate-stalked counterparts. Lineage records and breeding documentation frequently note capitate-sessile density as a visible marker of resin production potential. Their presence across plant tissues makes them relevant to breeding programs selecting for overall resin expression and trichome development patterns.

Breeders working in trichome phenotype selection often monitor capitate-sessile trichome density as one component of broader glandular hair development. Higher densities of these structures across leaf and calyx tissues are sometimes associated with genetic lines bred for robust resin coating, though total cannabinoid contribution remains secondary to larger trichome types.