Broad Leaflet Structure

Broad leaflet structure refers to cannabis plants displaying wider, more spatulate leaf geometry compared to narrow-leaflet phenotypes. This trait is commonly associated with indica-descended lineages and hybrids, though leaflet width exists on a spectrum across most modern breeding populations. Leaf morphology is polygenically controlled and influenced by environmental conditions, making it a useful but non-deterministic marker in pedigree work. Breeders often observe broad leaflets correlating with plant architecture characteristics such as shorter internodal spacing and bushier canopy development. This family encompasses both pure indica selections and F1/F2 hybrid expressions where broad-leaflet traits segregate alongside other morphological markers.

Breeders working in indica and hybrid programs frequently select for or against broad-leaflet phenotypes as part of canopy architecture optimization. Leaflet width can serve as a visual reference during early plant assessment, though genetic testing remains more reliable for parentage confirmation and trait stability across generations.