Leaf Coloration Phenotypes

Leaf coloration phenotypes describe the visible pigmentation patterns expressed in cannabis foliage, ranging from standard green to purple, red, blue, and variegated patterns. These expressions result from environmental conditions, genetic predisposition, and the presence of anthocyanins and other pigment compounds in leaf tissue. Breeders have documented consistent color morphs across certain lineages, though the same genotype may display different hues depending on temperature, light, and nutrient availability during growth. Leaf color phenotypes are often tracked as visual markers in breeding programs to identify stable cultivars and distinguish between similar genetic backgrounds. Documentation of these traits helps researchers understand the genetic architecture underlying pigmentation expression in Cannabis.

Breeders use leaf coloration as a phenotypic marker to identify consistent cultivars and track inheritance patterns across generations. Stable color morphs are often associated with specific chemotype families and can serve as visual confirmation of genetic purity or hybrid status.