Broad Leaf

Broad Leaf refers to cannabis plants exhibiting wider, more spatulate leaflets compared to narrow-leaf morphotypes. This trait appears across diverse genetic backgrounds and is influenced by both nuclear and cytoplasmic inheritance patterns. Broad-leaf plants are commonly associated with longer flowering periods and denser canopy structures. Historical cultivation records suggest broad-leaf morphology became prevalent in many landrace and hybrid populations, particularly in regions with longer growing seasons. The trait affects light penetration, airflow management, and harvest labor considerations in breeding programs.

Breeders select for or against broad-leaf characteristics depending on cultivation environment, pest pressure tolerance, and canopy architecture goals. The trait often correlates with plant vigor and biomass production, making it relevant for yield-focused breeding objectives.