Coloration Patterns

Coloration patterns in cannabis refer to the visible pigmentation variations across leaves, bracts, and flowers—including striping, mottling, anthocyanin-based purples, and variegation. These patterns are controlled by genetic expression, environmental stress (cooler temperatures, nutrient availability), and the plant's maturity stage. Documentation of coloration patterns helps breeders identify phenotypic consistency within a line and can serve as visual markers for stability testing. Patterns ranging from solid green to deep purple or spotted leaves are frequently observed in heirloom and modern cultivated varieties. Understanding coloration inheritance remains useful for selective breeding and strain preservation, though patterns alone do not indicate cannabinoid or terpene profiles.

Breeders track coloration patterns as morphological markers to confirm phenotypic stability across generations and seed batches. Consistent coloration can indicate genetic uniformity and help differentiate phenotypes within a cross or stabilized line.