Pinus kesiya, also known as Khasi pine or Benguet pine, is a widely distributed species of pine found in Asia. It is native to the Khasi hills in India and can be found in countries such as Thailand, the Philippines, Burma, Cambodia, Laos, China, and Vietnam. This tree can also be found in plantation forests in other parts of the world, including Africa and South America.
The Khasi pine is a tall tree, reaching heights of up to 30-35 meters, with a straight and cylindrical trunk. Its bark is thick and dark brown, with deep longitudinal fissures. The branches are robust and turn reddish-brown after the second year, while the branchlets hang down or are horizontal. The leaves are needle-like, dark green, and usually grow in fascicles of three. These needles can reach lengths of 15-20 cm, and their sheath is 1-2 cm long and remains persistent.
Khasi pine trees typically grow in pure stands or mix with broad-leaved trees, but they do not form open pine forests. The wood of Pinus kesiya is soft and light, making it useful for various applications. It is commonly used for making boxes, producing paper pulp, and creating temporary electric poles. This timber is in high demand and is obtained from both natural forests and plantations.
The resin of the Khasi pine is not abundant but was historically used for producing turpentine during the Spanish colonial period in the Philippines.
The city of Baguio in the Philippines, also known as "The City of Pines," is famous for its extensive stands of Khasi pine trees.
Overall, Pinus kesiya is an important and widely distributed pine species valued for its timber and its contribution to forest ecosystems.