Plant Tissue Distribution

Plant tissue distribution refers to how terpenes accumulate and concentrate across different anatomical structures within cannabis plants—primarily in trichomes, leaves, flowers, and stems. Trichomes, particularly glandular trichomes on flower calyxes and bracts, typically concentrate the highest terpene loads, while leaf tissue contains lower concentrations. Distribution patterns vary significantly between cultivars and are influenced by genetics, environmental stress, light exposure, and developmental stage. Understanding tissue-specific terpene localization is important for breeding programs seeking to maximize aromatic compound expression in harvestable flower material. Breeders often select for genetic predispositions toward robust trichome development and cannabinoid-terpene co-localization when developing new lines.

Breeders leverage tissue distribution patterns to select parent plants with superior trichome density and terpene concentration in flowers. Cultivars showing strong apical and calyx trichome expression are preferred in breeding programs targeting high-profile aromatic phenotypes.