China is the country with the earliest rime record in the world. For thousands of years, the ancient people in China called and praised rime for a long time. As early as the Spring and Autumn Period (770 BC-476 BC), there were records about "tree crops" in the Spring and Autumn Period, and some of them were called "tree interfaces", which is now called "rime". The word "rime" first appeared in "Woods" compiled by the Song Dynasty (420-479 AD) in the Southern and Northern Dynasties. Its explanation is: "The cold is as cold as beads, but the sunlight is gone, and Qilu is called fog pine." This is the word "fog pine" first recorded in the literature more than 500 years ago.

The most mysterious thing is the name "dream delivery". At the end of the Song Dynasty (AD 479-502), in Huang's Japanese Banknote, it was said that at that time, people called the fog pine a "dream-sending", which meant the weather phenomenon sent by God when people dreamed at night.

Wusong is its scientific name, and modern people have many more vivid names for this natural landscape. Because it is beautiful and bright, crystal clear, like a blooming flower, it is called "ice flower"; Because when the cold current hits the earth and everything loses its vitality, it is called "Ao Shuang Flower", which blooms in the cold like snow lotus and proud snow on the mountain and has strong charm. Because it is a beautiful work of art endowed by nature, just like "a magnificent building, a beautiful jade", it has profound implications and brings beautiful feelings to mankind, and is called "Qionghua"; Because it is like a magnificent falling snow hanging all over the branches, dotted with flowers in China, the landscape is magnificent and charming, becoming the most beautiful scenery in the north. It makes people feel relaxed and happy, arouses the elegance of scholars and poets from all walks of life, sings poems and paints, and expresses their feelings, and is called "Snow Willow".