时钟花(Turnera ulmifolia)是时钟花科时钟花属的多年生草本植物。它来自南美洲;有多个品种,常见的有黄色和白色两种花色。时钟花的花开花谢非常有规律,早上开晚上闭,并且所有花都同开同闭。时钟花的开花特点与日照、温度的变化是密切相关的,同时受体内时钟酶的控制,就是这 The flower of the clock (Turnera ulmifolia) is a perennial herb of the genus Campanulaceae. It comes from South America; there are several varieties, common with yellow and white two colors. The flower of the clock flower is very regular, open in the morning and closed in the evening, and all the flowers are closed with the flower. Clock flower flowering characteristics and sunshine, temperature changes are closely related to the same time by the body clock enzyme control, which is this