Description
Cunninghamia lanceolata (scientific name: Cunninghamia lanceolata (Lamb.) Hook.) is a tree of the family Cunninghamia and the genus Cunninghamia. The height is 30 meters, and the diameter at breast height can reach 2.5-3 meters; the crown of young trees is spire-shaped, the crown of big trees is conical, and the bark is gray-brown; the large branches are flat, and the small branches are nearly opposite or whorled, often in two rows. The leaves radiate and stretch on the main branch, and the leaf bases of the lateral branches are twisted into two rows, lanceolate or strip-lanceolate, usually slightly curved, sickle-shaped, leathery, and stiff. Male cones are cone-shaped, 0.5-1.5 cm long, with short stalks, usually more than 40 clusters of branch tops; female cones are solitary or 2-3 (-4) clusters, green; seed scales are small, with three tips Split, large lateral fissure, separated lobes, irregular fine serrations at the apex, 3 seeds on the ventral surface; flat seeds, covering the seed scales, long ovoid or oblong, dark brown, shiny, with edges on both sides Narrow wings, 7-8 mm long and 5 mm wide; 2 cotyledons, unearthed when sprouting. Flowering in April, cones mature in late October.
Distributed in China and Vietnam. Cunninghamia lanceolata is a subtropical tree species, which is more light-loving. Like a warm, humid, foggy and quiet climate environment, intolerant of severe cold and damp heat, afraid of wind and drought. Adapt to the climatic conditions of annual average temperature of 15-23℃, extreme minimum temperature of -17℃, and annual precipitation of 800-2000 mm.
Cunninghamia lanceolata is the most widely cultivated, fast-growing, and high-economic timber species in the Yangtze River Basin and south of the Qinling Mountains in China. The wood is yellow and white, used for construction, bridges, shipbuilding, ore pillars, wooden stakes, electric poles, furniture and wood fiber industrial raw materials. Strong wind resistance, smoke and dust resistance, can be used as street trees and windbreak forests. Also has medicinal value
