1, Korean pine
Korean pine is a gymnosperm, evergreen tree, up to 40 meters high. Branchlets densely brown pilose. The seeds are large, 1.2 ~ 1.6 cm long and wingless. It is found in Changbai Mountain to Xiaoxing 'anling in Northeast China, and often forms a mixed forest with fish scales and spruce. Strong cold tolerance, like slightly acidic soil or neutral soil. Tannin can be extracted from bark and turpentine can be extracted from trunk.
2. Pinus armandii
Pinus armandii is one of the famous evergreen tree species in Pinaceae. Location: High mountains from central to southwest of China. Like warm, cool and humid climate, neither cold nor wet, slightly dry and barren. It can be used as raw material for building, furniture and wood fiber industry. Trunk can be cut with resin; Tannin can be extracted from bark.
3. Changbai pine
Changbai pine: evergreen tree, 25-32 meters high, DBH 25- 100 cm; Cone-shaped ovoid, light brown and gray when mature; Seeds oblong or obovoid, slightly flat, grayish brown to grayish black. The natural distribution area of Pinus sylvestris var. mongolica is very narrow. It is only found in the north slope of Changbai Mountain in Antu County, Jilin Province, China, and the long and narrow sections along Erdaobai River and Sandaobai River at an altitude of 700- 1 600 meters. There are still small patches of pure forests and scattered trees.
4. Pinus bungeana
Pinus bungeana is a unique Pinaceae tree species in China, distributed in Shaanxi, western Henan, Qinling Mountains in Shaanxi, southern Gansu and Maiji Mountain in Tianshui, Guanwu Mountain in Jiangyou in northern Sichuan and western Hubei, and cultivated in Suzhou, Hangzhou and Hengyang. Born at an altitude of 500- 1800 meters.
5.sea pine
Sea pine is one of the main afforestation tree species in northeast forest region, which is widely distributed. Most of the natural forests on the southern slope of Xiaoxing 'an Mountains are mixed with other conifers and broad-leaved trees, except some areas are pure forests of sea pine.