在辽阔的内蒙古草原,每当深秋九月,北风阵阵,百花凋谢的时候,唯独有一种奇花却傲霜挺立,迎接萧瑟秋天的考验。这种奇花就是人们称之为草原上永不凋落的鲜花——二色补血草,群众称之为干枝梅。当人们第一次有幸来到这辽阔草原的时候,总要采上一束,或送亲友,或置案头,别有一番情趣。这种花如果保存适当,那粉红色或青黄色花朵会经久不衰而葆其大自然之丰姿。人工制作的塑料花、纸花与之相比都会暗然失色。为什么这种花能长期保存呢?因为这种兰雪科植物,在干旱条件下生长,为适应干旱缺水的严酷条件,其花瓣下的花萼都已膜质化。开花之后,花瓣虽然凋 In the vast grassland of Inner Mongolia, every autumn afternoon in September, when the northern breeze burst and the flowers withered, the only exception was a towering flower that stood proudly against the autumnal fall. This strange flower is what people call the ever-falling flowers on the prairie - Limonium bicolor, the masses call it dry plum. When people are lucky enough to come to this vast grassland for the first time, they always have to pick up a bunch, or send their relatives and friends, or set a desk, do not have some fun. If this flower is properly preserved, pink or yellow flowers will endure and preserve its natural beauty. Artificial plastic flowers, flowers compared with the paper will be eclipsed. Why is this kind of flower preserved for a long time? Because this kind of plant grows under drought conditions, in order to adapt to the harsh conditions of drought and water shortage, its petal calyx has been membranous. After flowering, although the petals withered