Gorilla is a 60% indica hybrid strain that is derived from the US Chem line. Its parentage is Chocolate Diesel, Chem Sister and Sour Dubb. It was serendipitous that a Sour Dubb was fertilised by a Chem Sister male purely by chance. Trichome production is huge and THC levels off the scale, so much so that it has won awards in the indica category under its other name of Gorilla Glue #4!