Cowpea (Vigna unguiculata (L.) Walp.) is one of the most popular grain legumes in Africa as well as in some regions of America and Asia. The main subspecies is Vigna unguiculata (L.) Walp. subsp. unguiculata (L.) Walp. Cowpea is often called black-eyed pea due to its black-or brown-ringed hylum.Cowpea is called the hungry-season crop because it is the first crop to be harvested before the cereal crops (Gomez, 2004). Its fresh or dried seeds, pods and leaves are commonly used as human food.owpea is often called black-eyed pea due to its black-or brown-ringed hylum. Cowpea is called the hungry-season crop because it is the first crop to be harvested before the cereal crops (Gomez, 2004).
Victoria Falls is often called the largest waterfall in the world, although it is neither the highest nor the widest. It has a width of 1.7 kilometers (1 miles) and height of 108 meters (360 ft), roughly twice the height of North Americaâs Niagara Falls.
Here are some facts about Victoria Falls, the famous waterfall located on the border of Zambia and Zimbabwe. 1  Victoria Falls is not the highest waterfall in the world (this title goes to Angel Falls in Venezuela), nor is it the widest.