And Pima cotton. American Upland cotton and American Pima cotton are two cotton species grown in the US. Soft and durableIn the Central Valley region of California, one type of cotton that represents the majority of the state's cotton acreage and that will be hit by the tariffs is the highly prized long-staple American Pima cotton. It'll be difficult for China to find another reliable source of Pima cotton, Neeper told The Daily Democrat newspaper in Woodland, California. His farm exports about 60 percent of its cotton crop to China and another 40 percent to India.