Blade Shape And Serration

Blade shape and serration refer to the morphology of cannabis leaflets—specifically the outline, edge texture, and tooth-like projections along leaf margins. Serration patterns range from smooth or slightly wavy edges to deeply toothed (serrated) margins, while blade shape varies from narrow and linear to broad and ovate. These traits are influenced by both genetics and growing conditions, with some cultivars consistently expressing pronounced serration across generations. Breeders observe blade morphology as a visible phenotypic marker for population diversity and lineage authenticity. Serration intensity and blade width have been noted in early cannabis taxonomy and remain useful descriptors in breeding documentation and strain characterization.

Breeders track blade morphology as a non-destructive, observable trait useful for early phenotype sorting and parentage verification. Consistent serration patterns and blade shape can serve as visual identifiers within breeding families and are often recorded in lineage archives.