(Pinus sylvestris var. mongolica Litv.) Evergreen tree, 15-25 m high, up to 30 m high, oval or conical crown. Trunk erect, bark below 3 to 4 m dark brown, scaly deeply divided, leaves 2 needles in a bundle, stiff, often slightly twisted, apex pointed. Monoecious, male spherules oval, yellow, clustered in the lower part of the current branch; Female bulb spherical or oval, purplish brown. Cones long ovate. The squamosal shield is obliquely square, with longitudinal ridge and transverse ridge, and the squamosal umbilicus is tuberculate. Seeds small, yellow, brown, black-brown, species membranous wing. It is produced in the Great Khingan Mountains of Heilongjiang Province, China at an altitude of 400-900 meters and in the sand dune area west and south of Hailaer. Can be used as garden ornamental and greening trees. With fast growth, good material and strong adaptability, the trees can be used as afforestation trees in the northeast Greater Khingan Mountains and the western sand hills.