Flower Structure Traits

Flower structure traits describe the physical architecture of cannabis inflorescences—including calyx density, bract arrangement, resin gland distribution, and pistil presentation. These morphological features are inheritable and influenced by both genetics and growing conditions. Breeders selecting for specific structures often prioritize tight calyxes for processing efficiency, dense trichome coverage for extraction yield, or open structures for airflow and mold resistance. Structure traits are documented across landrace populations and modern cultivars, offering measurable phenotypic markers independent of cannabinoid or terpene profiles. Understanding flower structure is foundational to breeding programs targeting yield optimization, disease resistance, or end-product suitability.

Breeders assess flower structure as a heritable trait to improve cultivation outcomes and product consistency. Dense, uniform structures are often selected for hash and concentrate production, while looser architectures may be preferred in humid climates to reduce pathogen pressure.