The GMO Rootbeer weed strain reportedly combines GMO Cookies with Root Beer. GMO Rootbeer comes from noted breeders Skunktek and Mean Gene from Mendocino aka Freedborn Selections. GMO Rootbeer has a distinct root beer smell, and a high-THC hybrid indica effect. The most abundant terpene in GMO Rootbeer is myrcene, followed by limonene and caryophyllene.