Broad Leaflet Types

Broad leaflet types refer to cannabis plants exhibiting wider, more spatulate leaf morphology compared to narrow-leaflet varieties. This trait is controlled by multiple genetic loci and appears across indica, sativa, and hybrid populations, though it is more commonly associated with indica-dominant lineages and Afghan/Hindu Kush germplasm. Leaf width influences light interception, air circulation, and water retention characteristics in the canopy. Breeders working in this category often report that broad-leaflet phenotypes tend toward shorter internodal spacing and more compact plant architecture, though individual cultivar expression varies significantly. Historical breeding records suggest broad-leaflet genetics were concentrated in Central Asian and South Asian cannabis populations before modern hybridization.

Breeders select for broad-leaflet expression when targeting compact plant structure, enhanced shade tolerance, or specific regional adaptation traits. Leaf morphology serves as a practical visual marker in early-generation selection and backcrossing programs, though it does not guarantee underlying cannabinoid or terpene composition.