Sectoring

Sectoring in cannabis refers to the appearance of distinct color or pigmentation zones within a single plant or leaf, often presenting as striped, variegated, or patchy regions. This trait arises from chimeric tissue—areas where cells carry different genetic information or express different genes—resulting in visual differentiation across plant surfaces. Sectoring is commonly observed in variegated strains and is particularly notable in foliage, though it can also appear in flowers and even trichome distribution. Breeders have documented sectoring in numerous cultivars, though the mechanism is still being studied by cannabis geneticists. This trait is largely cosmetic and does not reliably correlate with cannabinoid or terpene profiles.

Breeders working in ornamental and novelty cultivar development often select for visible sectoring to create visually distinctive plants. Sectoring patterns can indicate genetic instability or chimerism, which some breeders deliberately maintain or eliminate depending on breeding goals for stability and trait expression consistency.