Bhutan pine, Blue pine, Himalayan white pine
Needles in fascicles of 5, 11 - 20cm long, blue-green, often with a kink near the base and appearing slightly pendent. Needles wedge-shaped in cross-section, surfaces of the straight edges with two broad bands of white stomatal dots. Surface of curved edge is dark green. Shoots glabrous. Cones banana-shaped, often at the higher end of the 10-30cm length range, and with plentiful resin blobs. When mature the basal ring of cone-scales is often reflexed. Seeds with a large papery wing.
The other 5 needles pines likely to be encountered in the British Isles can look very similar to each other and some care needs to be taken to accurately identify them. Important features to check are the shoots (glabrous or hairy?), and the cones which are distinct for each. Bhutan pine and Armand's pine (P. armandii are very similar in their foliage and shoot characters but readily separated by their cones and seeds. Bhutan pine has long, pendent banana-shaped cones and winged seeds, Armand's pine has a more ovoid cone, somewhat barrel shaped, and wingless seeds.
Bhutan pine is the second most important timber tree in the Himalaya after Deodar (Cedrus deodara and was an important source of both rosin and turpentine. It's range stretches from Afghanistan to Nepal and it was introduced to the British Isles in 1823. Because of the graceful appearance and blue-green foliage Bhutan pine is fairly common as a specimen tree in parks and larger gardens.