Is the Loasa genus or the Ferula genus more useful to humans?
Loasa Loasa is a genus of ornamental plants in the family Loasaceae. These plants are usually prickly herbs, or subshrubs, and they are native to tropical America.
Kola nut The kola nut is the fruit of the kola tree, a genus ("Cola") of trees that are native to the tropical rainforests of Africa. The caffeine-containing fruit of the tree is used as a flavoring ingredient in beverages, and is the origin of the term "cola".