Morphological Phenotypes

Morphological phenotypes describe the observable physical structure and growth patterns of cannabis plants, including height, branching architecture, leaf shape, and internode spacing. These traits are determined by both genetic expression and environmental factors such as light, temperature, and nutrient availability. Breeders classify plants along a spectrum from compact, bushy "indica-type" structures to tall, sparse "sativa-type" forms, though modern cannabis genetics often blend characteristics from multiple ancestral populations. Understanding morphological variation is foundational to breeding programs, as plant structure directly influences cultivation practices, yield potential, and cannabinoid/terpene expression. Phenotypic selection has historically shaped regional cannabis traditions, with specific morphologies becoming associated with particular geographic origins and breedi

Breeders select for morphological traits to optimize cultivation efficiency, autoflowering potential, and cannabinoid production under specific growing conditions. Plant architecture is a primary consideration in stabilizing new cultivars, as consistent structure enables predictable canopy management, light penetration, and harvest logistics across generations.