Dried root-bark of one or more of the cultivated species of Gossypium herbaceum L. and of other species of Gossypium, Malvaceae. Habit. Asia (India, China, Arabia), Egypt, U.S., West Indies, S. America, Australia, Spain, etc. Constit. Yellow chromogen about 8% of a pale yellow resin, fixed oil, sugar.
Oxytocic.