In the United States, they are closely related to Sea Island cotton which came into prominence along the coast of South Carolina and to the Egyptian-type species which gained popularity of its high-quality fiber for use in the fine counts.

• 在美国,棉花的品种多与海岛棉密切相关,海岛棉在南卡罗来纳海岸占有绝对优势。另外美国的棉花品种也与埃及棉密切相关,这种棉花具有高质量的纤维,多用于细特纱,其品质已获得广泛的承认。