Name: ash tree
Latin scientific name: ash
Nicknames: Aralia elata, Acacia.
Fraxinus of Meliaceae
It is distributed from the north to the south-central part of Northeast China, passing through the Yellow River Basin and the Yangtze River Basin, reaching Guangdong, Guangxi and Fujian in the southeast, and Gansu in the west. The altitude of western Sichuan is about 365,438+000 m. North Korea and Vietnam are also distributed. Gundam 15m, oval crown and yellowish brown bark. Branchlets are smooth and hairless. 5 ~ 9 leaflets, usually 7, oval or oval, 3 ~ 10 cm long, tapering at the top, narrow and asymmetrical at the base, toothed and wavy at the edge, hairless on the surface, and pubescent on the back along the veins. Panicles are measured or terminal on the branches of the current year, which are large and loose. Calyx campanulate; No petals. Samara oblanceolate, 3 ~ 4 cm long. The flowering period is from March to May. /kloc-The fruit ripens in October. Like light, slightly resistant to shade; Like warm and humid climate, quite cold-resistant; Like wet and waterlogging, but also drought-tolerant; The requirements for soil are not strict. Kangyan can grow in alkaline, neutral and acidic soils, and has strong resistance to sulfur dioxide, chlorine and hydrogen fluoride. Strong germination and pruning resistance. It grows rapidly and has a life span of more than 200 years. Lush foliage, well-developed roots, fast growth, moisture resistance, slightly salt tolerance, is an excellent tree species for wind and sand fixation, dike protection and road protection. Its trunk is tall and straight in shape, beautiful in tree shape and resistant to smoke, sulfur dioxide and chlorine. It is a good tree species for greening and beautifying factories and towns.