Black Widow Strain UK is a balanced hybrid marijuana strain made by crossing South American with South Indian Sativa. This strain is known to provide a buzzy head high that is accompanied by relaxing effects. Black Widow smells fruity and a little bit skunky. This strain is extremely potent, and ideal for anyone with a high THC tolerance. Medical marijuana patients choose Black Widow to help relieve symptoms associated with muscle spasms, stress, and physical pain.