Spring germination of mimosa, green green, the pole is only 1-2 decimetres long. Summer, luxuriant mimosa branches, leaves a very strange, a very small stem, on both sides as there are some fine things, like small needles, leaves and water, much like cedar. Autumn flowering mimosa, and one after another flower plush velvet, with pink, and purple. Although it is very small, inconspicuous, but when you observe carefully, you will find it beautiful and lovely, it is a effemination of the United States, it is liked.秋末冬初, the results of the mimosa, fruit such as lentils, green outside layer of the shell, which is the seed. After some time, turned into a brown shell, and soon, seeds from the shells jump out the yard and landed on the soil, such as next spring to take root, it is so to multiply indefinitely from generation to generation, and its interest rate and other interest-bearing Health plant is no different. People wonder why touch it, leaves it will shut down? I can not understand why, but to find information on the Internet.
It turned out that the stem petiole in Mimosa, a liquid storage pocket, it looks like the fuel tank of the hydraulic drive. Normally, capsular bag filled with liquid, when you touch the leaves, the capsular bag of the liquid and leaves on both sides of the upward movement of the leaves in close up under gravity, and such a calm moment, the liquid slowly from the two side back pocket, the leaves re-launched.
I too like a mimosa!
我们小区里的草坪上有几株含羞草，因为与众不同，引起了我的好奇心，所以我特别留心观察它。
春天，含羞草发芽了，嫩绿嫩绿的，杆子只有1到2分米长。夏天，含羞草枝叶茂盛，叶子很奇特，一根很细的茎，两旁有一些细细的像小针一样的东西，和水杉树的叶子很像。秋天，含羞草开花了，一朵朵小花毛绒绒的，有粉红色的，有紫色的。虽然它很小，不起眼，但当你仔细观察时，就会觉得它美丽又可爱，那是一种娇气的美，很招人喜欢。秋末冬初，含羞草结果了，果子像扁豆，外面有一层绿色的外壳，里面是种子。过了一段时间，外壳变成了棕色，不久，种子就从壳子里跳了出来，落在泥土上，等明年春天生根发芽，就这样一代代地繁衍下去，它的生生息息和其它植物没什么两样。让人纳闷的是，为什么一碰它，叶子就会下垂合拢呢？我百思不得其解，只好上网找资料。
原来，在含羞草叶柄的茎部，有一个储藏液体的囊袋，它好像液压机里的油缸。平时，囊袋里装满了液体，当你触动叶子的时候，囊袋里的液体就向上部和叶子两侧流动，叶子在重力作用下就合拢了，等平静一会儿后，液体慢慢从两侧流回囊袋，叶子重新展开了。
我太喜欢这些含羞草了！