Sativa-dominant. Parents: Tahoe OG x Alien Kush. With some of the most potent genetics, Alien OG Kush is revered as a highly medicinal as well as potent strain of medical cannabis. Tahoe OG is a highly sought-after strain, Alien Kush incorporates one of the best Southern California strains. These buds are tight, dense and slightly elongated, providing a nearly 2-hour effect that is superb for migraines, glaucoma, arthritis and even ADD/ADHD.