The developlnent of colonialisln and the partition of Africa by the European colonial powers arrested the natural development of the African economic system. Africa prior to colonialisln was not econolnical1y isolated fro In the rest of the world.
10. The leaves of stinging nettle plant are used to treat and relieve allergies. It is believed that consuming stinging nettle leaf before meals can cure food sensitivities. Nettle has anti-histamine properties, which act against the histamine present in the body and also against the allergic rhinitis.ettle leaf is used for treating anemia as it is high in iron. It is known for its blood building and blood purifying properties. Consuming a bowl of nettle soup regularly is a good remedy for treating anemia and also for lowering blood sugar levels.
Urtica dioica, often called common nettle or stinging nettle (although not all plants of this species sting), is a herbaceous perennial flowering plant, native to Europe, Asia, northern Africa, and western North America, and is the best-known member of the nettle genus Urtica. U. dioica subsp. galeopsifolia (fen nettle or stingless nettle), from Europe, does not have stinging hairs. 2  U. dioica subsp. afghanica, from southwestern and central Asia, sometimes has stinging hairs or is sometimes hairless. 3  U. dioica subsp. gansuensis, from eastern Asia (China), has stinging hairs.