what trees produce cotton
- The Thorny Trees That Produce Cotton Pods and Pink Flowers. Native to South America, the Chorisia speciosa, more commonly known as the floss silk tree (or silk floss tree), is a deciduous, exotic-looking tree used mainly for ornamental---rather than practical---purposes. The thorny tree produces cottony white pods and intensely pink flowers. Due to its showy appearance, it is a popular choice amongst many landscapers (frequently placed near parking lots, in medians and along sidewalks).