Serrated Leaf

Serrated leaf morphology refers to cannabis plants displaying distinctly jagged or saw-toothed leaf margins, contrasting with smooth-edged leaf phenotypes. This trait appears across diverse genetic backgrounds and is influenced by both nuclear and cytoplasmic inheritance patterns. Serrated leaves are commonly observed in landrace and heirloom cultivars, particularly those with Southeast Asian or Central American origins. The trait does not correlate reliably with cannabinoid profiles or flowering time, making it primarily a morphological descriptor rather than a predictive breeding marker. Breeders documenting plant architecture often note serrated leaf expression as part of phenotypic characterization for strain records and stability assessments.

Serrated leaf morphology serves as a visual descriptor in hybrid stability studies and backcrossing programs, helping breeders track phenotypic consistency across generations. The trait's inheritance pattern varies by parentage, making it useful for monitoring genetic drift when establishing true-breeding lines.