Cannabis possible break up from its closest relative, Humulus (hops), during the mid Oligocene, close to 27.eight million a long time ago Based on molecular clock estimates. The centre of origin of Cannabis is probably going inside the northeastern Tibetan Plateau. The pollen of Humulus and Cannabis are certainly similar https://landenrxaej.life-wiki.com/868207/5_easy_facts_about_seedbank_described