When we mention THCA Flower from Killa Kush, we're discussing the cannabis plant material that contains high levels of Tetrahydrocannabinolic Acid (THCA) in its raw, unheated form. In this state, THCA isn't intoxicating. It's basically the "pre-THC" but if it requires heat (such as smoking or vaping) to decarboxylate into the Delta-9 THC that delivers the effects that many think of when they think of cannabis.