Leaf Structure Broad Leaflets

Broad leaflet structure refers to cannabis plants exhibiting wider, more expansive individual leaflets compared to narrow-leafed phenotypes. This trait is commonly associated with indica-influenced genetics and plants adapted to shorter growing seasons or lower-light environments. Broad leaflets typically feature increased surface area for light capture, which breeders have historically selected for in indica and hybrid development programs. The structure contrasts with sativa-leaning lines, which often display more slender, finger-like leaflets. Documentation of broad leaflet prevalence appears frequently in landrace studies from Hindu Kush and Central Asian cannabis populations.

Breeders working with broad-leaflet phenotypes often select for this trait when developing shorter-cycle, high-biomass cultivars or when crossing indica lines into hybrid programs. Leaf structure serves as a visual marker during early phenotyping, helping breeders identify offspring that may carry desired growth-rate or structural characteristics.