Fan Leaf Phenotype
Fan leaf phenotype refers to the broad, multi-fingered leaf structure commonly observed across Cannabis sativa and sativa-dominant hybrids. Named for its resemblance to a hand fan, this trait typically features 7–13 leaflets arranged in a palmate pattern and is often associated with longer internodal spacing and extended flowering periods. The fan leaf's morphology contrasts with the narrower, more densely-packed leaves seen in indica and indica-dominant genetics. Breeders observe fan leaf development as a visual marker of sativa lineage expression, though environmental factors and individual plant vigor also influence final leaf size and shape.
Fan Leaf Phenotype strains
No strains tagged into Fan Leaf Phenotype yet — they'll appear here as breeders submit lineage records under this family.
Fan leaf phenotype refers to the broad, multi-fingered leaf structure commonly observed across Cannabis sativa and sativa-dominant hybrids. Named for its resemblance to a hand fan, this trait typically features 7–13 leaflets arranged in a palmate pattern and is often associated with longer internodal spacing and extended flowering periods. The fan leaf's morphology contrasts with the narrower, more densely-packed leaves seen in indica and indica-dominant genetics. Breeders observe fan leaf development as a visual marker of sativa lineage expression, though environmental factors and individual plant vigor also influence final leaf size and shape.
Fan leaf phenotype serves as a reliable phenotypic indicator when selecting for sativa traits, vigor assessment, and internode length in breeding programs. Growers and breeders monitor fan leaf development to estimate flowering duration and plant structure maturity early in vegetative growth.
Educational reference · Cultivar metadata only · No medical claims