Meteorological tree Qinggang Tree

Qinggang Tree, also known as Cyclobalanopsis glauca, is called "Meteorological Tree" because its leaves will change with the weather.

Qinggang Tree is a subtropical tree species, which is common in southern China. It is sensitive to climatic conditions, because the ratio of chlorophyll and anthocyanin in leaves has changed. After a long drought, just before the rain, chlorophyll synthesis was blocked in hot and muggy days, which made anthocyanins dominant in leaves and the leaves gradually turned red.

Farmers in some places have learned from their usual observation of the green bar trees that when the leaves turn red, there will be heavy rain in this area for a day or two, and after the rain clears, the leaves turn dark green. According to this information, farmers predict the weather and arrange farm work.