Junipers are coniferous plants in the genus Juniperus of the cypress family Cupressaceae. Depending on taxonomic viewpoint, between 50 and 67 species of juniper are widely distributed throughout the Northern Hemisphere, from the Arctic, south to tropical Africa in the Old World, and to the mountains of Central America and Ziarat Pakistan. The highest-known Juniper forest occurs at altitude of 4,900 metres in south-eastern Tibet and the northern Himalayas, creating one of the highest tree-lines on earth.