Sequoia is the tallest gymnosperm measuring 111 meters. Eucalyptus is one of the tallest tree, reaching a height of 200−300 feet and is a native of Australia. In India, it has been successfully cultivated in various parts of the country. The linear, scythe-shaped leaves yield an essentials oil. Eucalyptus oil which is of medicinal importance. Casuarina is a medium sized xerophytic tree found chiefly in Bengal, Punjab and Northern India. Its bark is used for tanning. Pinus has height of 50−60 meter.