Terpinene

Terpinene is a monocyclic monoterpene that exists in multiple isomeric forms, most commonly alpha-terpinene and gamma-terpinene in cannabis. These isomers appear in trace to minor amounts in most cultivars, though lineage records frequently report slightly elevated concentrations in certain Haze and Sativa-dominant lines. Alpha-terpinene is often tagged as woody and spicy in aroma profiling, while gamma-terpinene commonly associates with herbal and piney notes. Terpinene isomers also occur in cumin, tea tree, and cardamom, making them useful botanical reference points for aroma classification.

Breeders tracking terpene profiles may monitor terpinene as part of minor-terpene fingerprinting to differentiate lineages and preserve specific aromatic phenotypes. Selecting for terpinene-forward cultivars remains secondary to dominant terpene work (limonene, myrcene, caryophyllene), but contributes to multi-terpene complexity in breeding programs.