Leaf Shape
Leaf shape is a primary morphological classification used in cannabis genetics to describe the visual structure of foliage. Common variations include narrow leaflets (often associated with sativa-dominant lineages), broad leaflets (frequently linked to indica-dominant genetics), and intermediate forms. Leaf shape is heritable and reflects both ancestral geography and selective breeding choices. Breeders observe leaf morphology early in vegetative growth to identify phenotypes and guide breeding selections. Shape classifications help document genetic diversity within strain families and inform cultivation expectations, as different leaf structures can influence light penetration, air circulation, and resource allocation within the plant canopy.
Leaf Shape strains
No strains tagged into Leaf Shape yet — they'll appear here as breeders submit lineage records under this classification.
Leaf shape is a primary morphological classification used in cannabis genetics to describe the visual structure of foliage. Common variations include narrow leaflets (often associated with sativa-dominant lineages), broad leaflets (frequently linked to indica-dominant genetics), and intermediate forms. Leaf shape is heritable and reflects both ancestral geography and selective breeding choices. Breeders observe leaf morphology early in vegetative growth to identify phenotypes and guide breeding selections. Shape classifications help document genetic diversity within strain families and inform cultivation expectations, as different leaf structures can influence light penetration, air circulation, and resource allocation within the plant canopy.
Leaf shape serves as a visual marker for rapid phenotype identification during seedling and early vegetative stages. Breeders tracking lineage consistency often monitor leaflet width and serration patterns as indicators of genetic stability across generations.
Educational reference · Cultivar metadata only · No medical claims