Eucommia ulmoides, also known as silk skin, silk skin, silk cotton skin, jade silk skin and silk medium. , belonging to deciduous trees. Eucommia ulmoides Oliv It is a rare and unique tree species in China, with high economic value, and has been identified as a second-class precious protected tree species by relevant departments in China.
Eucommia ulmoides leaves are oval or ovoid, 7-375px long and 3.5- 175px wide. The surface is yellow-green or yellow-brown, slightly shiny. The top is tapered, the base is rounded to form a wide wedge, the edge is serrated, and the petiole is short. Crispy, fragile to knead, with a small amount of silver-white rubber wires connected on the broken surface, slightly bitter.
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Growth habit
Eucommia ulmoides Oliv Like warm and humid climate and sunny environment, can resist the cold, and can survive normally at -30℃. It can be cultivated in most parts of China and has strong adaptability. There is no strict requirement on the choice of soil, but loam with deep, loose, fertile, moist and well-drained soil layer is the most suitable.
The growth rate of Eucommia ulmoides Oliv. The initial development is slow, and the rapid growth period appears in 7-20 years. After 20 years, the growth rate is decreasing year by year. After 50 years, the growth of tree height basically stopped, and the plants naturally withered.
Most of them grow in low mountains, valleys or sparse forests with low slopes at an altitude of 300-500 meters. The choice of soil is not strict, they can grow on barren red soil or rocky cliffs.