Flower Structure

Flower structure refers to the physical morphology and arrangement of cannabis inflorescences—the size, density, and spatial organization of calyxes, bracts, and resin glands. Breeders distinguish between compact, dense structures and looser, airy formations, both of which influence cultivation outcomes, environmental susceptibility, and processing characteristics. Flower structure is partially heritable and responsive to growing conditions, making it a useful selection criterion in breeding programs. Dense structures are often associated with higher calyx-to-leaf ratios, while looser formations may offer better air circulation during flowering. Understanding flower architecture helps breeders optimize for specific cultivation environments and product categories.

Breeders select for flower structure as a primary trait to improve yield efficiency, disease resistance, and consistency across generations. Dense, tight formations are frequently prioritized in indoor breeding for space optimization, while looser structures may be preferred in humid outdoor settings to reduce mold pressure.