Cannabis probable break up from its closest relative, Humulus (hops), throughout the mid Oligocene, about 27.8 million many years back according to molecular clock estimates. The centre of origin of Cannabis is likely inside the northeastern Tibetan Plateau. The pollen of Humulus and Cannabis are really very similar and tricky https://beautlciv.getblogs.net/65304715/the-definitive-guide-to-terpenes