The common commercial varieties are G. hirsutum
(US, Australia), G. arboreum and G. herbaceum
(Asia), and G. barbadense (Egypt). In the wild
it can grow up to 3 meters high. The leaves are broad and
have three parts while the seeds are contained in capsules
called bolls, surrounded by a downy fibre called
lint. The lint is easy to work with or spin and
is the source of cotton cloth.