The papyrus reeds form vast stands in swamps, in shallow lakes, and along stream banks throughout Africa. It is considered a weed in the Sudan, Dahomey and Egypt. Uganda has ca 6,500 km2 of permanent swamp or wetlands, much of it covered in papyrus. Occurs also in Sicily and Palestine. According to Baumann (1960) the plant grows over a wide area bounded roughly by the 38th and 26th parallels on the north and south, and by the 65th and 32nd on the east and west, but is virtually absent in the lower Nile marshes where it flourished in ancient times. http://www.hort.purdue.edu/newcrop/duke_energy/Cyperus_papyrus.html
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