**9. Some economically viable medicinal plants of the African origin**

Some economically important medicinal plants indigenous to Africa are presented. Street & Prinsloo [11] have reported ten (10) commercially important medicinal plants of South Africa to include: *Agathosma betulina*, *Aloe ferox*, *Aspalathus linearis*, *Harpagophytum procumbens*, *Hypoxis hemerocallidea*, *Merwilla natalensis*, *Pelargonium sidoides*, *Sclerocarya birrea*, *Siphonochilus aethiopicus* and *Sutherlandia frutescens*. Mahomoodally [12] has also reported ten potent African medicinal plants with the potentials to be developed as phytopharmaceuticals to treat infectious diseases. These plants include: *Acacia senegal*, *Aloe ferox*, *Artemisia herba-alba*, *Aspalathus linearis*, *Cantella asiatica*, *Catharanthus roseus*, *Cyclopia genistoides*, *Harpagophytum procumbens*, *Momordica charantia* and *Pelargonium sidoides*. Other plants of economic value include: *Xylopia aethiopica*, *Monodora myristica*, *Aframomum melegueta*, *Khaya senegalensis*, *Pteleopsis suberosa*, *Griffonia simplicifolia*, *Voacanga africana* and *Fadogia agrestis* [21]. According to [41, 42] the most traded species were of plants in Tanzania include: *Zanthoxylum chalybaeum*, *Albizia anthelmintica*, *Zanha Africana*, *Warburgia stuhlmannii* and *Vachellia nilotica*. *Cultivation and Conservation of African Medicinal Plants for Pharmaceutical Research… DOI: http://dx.doi.org/10.5772/intechopen.102637*

In Nigeria, according to [19] the economic viable plants which if harnessed for their fixed can generate a huge amount of revenue include: *Sesame indicum*, *Adansonia digitata, Vitellaria paradoxa* and *Persia americana*.
