Cannabis probable split from its closest relative, Humulus (hops), in the mid Oligocene, all over 27.eight million years ago according to molecular clock estimates. The centre of origin of Cannabis is likely in the northeastern Tibetan Plateau. The pollen of Humulus and Cannabis are certainly similar and tough to distinguish. https://angelodczup.full-design.com/herbhaus-things-to-know-before-you-buy-69427523