Trichome Density Phenotypes

Trichome density phenotypes describe the distribution and concentration of resinous glands across cannabis plant tissue. Breeders classify these patterns as sparse, moderate, or dense—a trait influenced by both genetics and environmental conditions. Trichome density affects visual appearance, resin yield potential, and processing characteristics. Lineage records frequently report that certain cultivars consistently express higher or lower density across generations. Understanding these phenotypic variations is essential for standardizing breeding programs and predicting offspring characteristics.

Breeders select for trichome density phenotypes based on production goals: dense expression is often prioritized for hash and concentrate production, while moderate density may suit flower markets. Consistent phenotypic expression across generations helps establish stable cultivar lines.