广西圻城有一棵青冈树,它的树叶会根据气候变化规律性地改变颜色。天气晴朗,叶色呈深绿;如变成红色,几天之内必有雨。当雨过天晴,又恢复成深绿色。四川峨眉山上的一棵树,四季常绿。如果树周围有烟雾轻纱缭绕,这一带就会下雨;烟雾稍疏,则有小雨;再淡薄则阴云蔽日;无烟雾则天高气爽,人们称它报雨树。 Guangxi Zhucheng has a glaucoma tree, its leaves will be regularly changing color according to climate change. The weather is sunny, dark green leaves; as the red, there will be rain within a few days. When it rains, it regains a dark green color. Sichuan Emei a tree, evergreen. If the trees are covered with smoke veil around the trees, this area will rain; the smoke is slightly sparse, there is light rain; then the light is the cloud shelter; smoke-free atmosphere, people call it rain tree.