曇花是仙人掌科令箭荷花屬中的一种温室植物,原來産在墨西哥、中美和南美热带地区,目前在我國各大都市的公園里大多有栽培。 曇花的老枝是圆柱形的,新枝扁平,綠色,成叶狀,所以叫做叶狀枝。叶狀枝兩側边緣成波浪狀的浅鋸齒,花 Amaranthus is a greenhouse plant in the order of cactus, and is originally produced in the tropical regions of Mexico, Central America, and South America. Currently, it is cultivated in most of the parks of major cities in China. The old branch of this flower is cylindrical, the new branch is flat, green, and leafy, so it is called leafy branch. Leaves wavy shallow serrations on both sides of leafy branches, flowers