Trichomes Glandular Capitate

Glandular capitate trichomes are mushroom-shaped glandular hairs composed of a thin stalk topped with a large, bulbous resin head. These structures are the primary sites of cannabinoid and terpene production in Cannabis sativa, and their density and maturation state are key markers in breeding programs and cultivation assessment. The resin heads can measure 50–100 micrometers in diameter and contain the plant's secondary metabolites. Glandular capitate trichomes develop progressively during flowering and are commonly evaluated under magnification to determine harvest timing and phytochemical expression. This classification is fundamental to understanding trichome morphology and lineage characteristics across different cultivars.

Breeders select for glandular capitate trichome density and size distribution as markers of resin production capacity and cannabinoid/terpene potential. Lineage records frequently report visual trichome profiles to differentiate cultivars and predict biochemical phenotypes independent of chemical analysis.