They are found in the Compoeitae (Cickoriaceae), Campanulaceae, Papaveraceae, Loheliaceae, Papayaceae, in some Aroideae and Musaceae, and in Euphorbiaceae (Manihot, Ilevea).
It produces Indian corn and other cereals and potatoes in the colder regions, and tropical fruits, sweet potatoes and mandioca (Jatropha manihot, L.) in the low tropical valleys.
Manihot Glaziovii belonging to the Euphorbiaceae is the tree of N.E.
It is closely related to the Manioc, cassava or tapioca plant (Manihot utilissima) which it resembles when young and exhibits a similar tuberous root system.
The Manihot tree has been widely introduced into other countries, and appears to succeed wherever the rainfall is not excessive.