Glandular Tissue

Glandular tissue in cannabis refers to the specialized structures that produce and store cannabinoids, terpenes, and other secondary metabolites. These tissues include trichomes (external glandular hairs) and internal glandular formations within flowers, leaves, and stems. The density, morphology, and chemical output of glandular tissue vary significantly across cultivars and are often linked to specific genetic lineages. Cannabis breeders frequently select for robust glandular tissue development as a primary breeding objective, since these structures directly correlate with resin production and metabolite concentration. Understanding glandular tissue structure is foundational to evaluating plant phenotypes during breeding programs and seed line stabilization.

Breeders working with glandular tissue focus on selecting parent plants displaying dense, well-developed trichome heads and prolific internal gland formation. Stable glandular expression across generations indicates strong genotypic control and is a key marker for reliable seed line development.