It is a tree which sometimes reaches great dimensions: there are some plants up to 60 meters high with a trunk over two and a half meters in diameter. It has needle-shaped leaves, sometimes light green, up to 30 centimetres long, arranged in clusters of three. The upright trunk has grey bark, with grey-reddish plates. The "Canary Islands' pine-tree" is an endemic plant of the archipelago, but it is wild only in Tenerife, La Palma, Gran Canaria and Hierro