Flavonoid Chemistry

Flavonoids are a diverse class of plant polyphenols responsible for pigmentation, UV protection, and flavor modulation in cannabis. These compounds—including anthocyanins, catechins, and quercetin—contribute to the plant's visual spectrum from deep purples to yellows, and interact with terpenes to shape perceived aroma and taste profiles. Flavonoid expression varies significantly across cultivars and is influenced by genetics, light exposure, temperature, and harvest timing. Breeders studying flavonoid chemistry often correlate specific anthocyanin profiles with strain lineage and environmental resilience. Unlike cannabinoids and terpenes, flavonoids remain understudied in cannabis breeding, though their role in plant stress response and sensory complexity is increasingly documented in horticultural research.

Breeders working with flavonoid expression use visible pigmentation—particularly purple, blue, and red hues—as a phenotypic marker for underlying chemical diversity. Selecting for stable anthocyanin production across generations helps establish consistent sensory and visual traits in new cultivars, though expression remains environment-dependent.