Cultivation setting relates to the distribution and amount of n-alkanes.
δ13C values of CO2 of the growth environment controlled the δ13C values of n-C29.
Cannabis cultivated in enclosed environments had significantly lower δ13C values.
The correct growth environment was assigned 90% of time from δ13C values of n-C29.
Inflorescence n-alkanes may be used to trace the cultivation method of Cannabis.