Broad Leaflet

Broad leaflet refers to cannabis plants exhibiting wider, more expansive leaf blade morphology compared to narrow-leaflet phenotypes. This trait is often associated with indica-dominant genetics and plant structures adapted to shorter growing seasons. Leaf width can influence light interception, photosynthetic efficiency, and overall canopy architecture. The broad leaflet characteristic is frequently observed in Afghan, Hindu Kush, and other Central Asian landrace lineages. Breeders document this trait as a visual marker for genetic background and breeding stability across generations.

Breeders working with broad-leaflet phenotypes often use this morphological marker to identify and stabilize indica-leaning crosses. The trait's heritability makes it useful for phenotype selection in structured breeding programs and hybrid development.