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.
Pearsonia Pearsonia is an African plant genus of some 12 species belonging to the family Fabaceae and occurring south of the equator with 1 species found on Madagascar. The species are usually herbs or shrublets with woody rootstocks. Leaves are usually sessile and 3-foliolate. The inflorescence is a congested or lax terminal raceme. The name of this genus commemorates the South African botanist Henry Harold Welch Pearson.