Taishan pine is mainly Pinus sylvestris var. mongolica. Mongolia, the main differences are as follows: 1. The needles are different. The needles of black pine are 6- 12 cm long. The needles of Pinus sylvestris var. mongolica. Quercus mongolica is 4 to 9 cm long and rarely reaches 12 cm. The leaves of black pine are longer. 2. Different places of origin. Black pine is native to the south coast of Japan and South Korea, and it is an exotic product. Pinus sylvestris var. mongolica. Mongolian almond is produced in Daxinganling, China. 3.DBH is different. The DBH of black pine can reach 2m, and that of Pinus sylvestris var. mongolica is 80cm. The trunk of black pine is thicker. 4. The trunk color is different. The bark of young black pine trees is dark gray, while it is gray-black when old. The lower part of the trunk of Pinus sylvestris var.mongolica. Mongolian almond is taupe or dark brown, the upper bark and branch bark are yellow to brownish yellow, and the inside is golden yellow. Bark has different shapes. The black pine broke into pieces and fell. The lower part of the trunk of Pinus sylvestris var.mongolica. Quercus mongolica deeply splits into irregular scales and falls off, and the upper bark splits into thin slices and falls off.

Black pine, also known as white bud pine, is an evergreen tree with a height of 30 meters and a gray-black bark. April flowers, single flowers. The female flower is born at the top of the new bud and is purple. Most kinds of scales (carpels) are arranged in a spherical shape. When mature, most pollen floats out with the wind. In the autumn of the following year, cones were formed, scales cracked, seeds scattered and seeds with thin wings. There are short thorns on the navel of the fruit scale. Evergreen trees of Pinus sylvestris var. mongolica. Almond of Mongolia, 15 is as high as 25m and 30m, and its crown is oval or conical. The trunk is straight, the bark below 3 to 4 meters is dark brown, scaly, deeply divided, the leaves are 2 needles in a bunch, rigid, often slightly twisted, and the apex is pointed. Monoecious, the male cones are oval and yellow, clustered in the lower part of the annual branches. Female cones are spherical or ovoid, purple-brown. The cones are oval. The scale shield is an oblique square with longitudinal and transverse ridges, and the scale umbilicus is a tumor-like process. The seeds are small, yellow, brown and dark brown, and the seed wings are membranous.