What tree can predict the weather?

Cyclobalanopsis is also known as Qinggang Tree and Tiemuzhou. This kind of tree is very sensitive to climate change, which is formed by the change of the ratio of chlorophyll and anthocyanin contained in leaves. After a long-term drought, just before the rain, when encountering strong light and sultry weather, chlorophyll synthesis was blocked, which made anthocyanins in leaves dominant and leaves gradually turned red. People in some places know from their usual observation of the green bar trees that when the leaves turn red, it will rain heavily in this area in a day or two. After the rain, the leaves are dark green. According to this information, farmers can predict the weather and arrange farm work.

Cyclobalanopsis glauca is a subtropical tree species and one of the most widely distributed tree species in China. This tree is also distributed in Korea, Japan and India. Because its leaves change color with the weather, it is called "weather tree".