What is the main significance of the sensitivity of mimosa to its survival?

What is the main significance of the sensitivity of mimosa to its survival? The sensitivity of mimosa means that its leaves will automatically close when subjected to external force, so it can be seen that it is to prevent the branches and leaves from being damaged; There are many animals and plants in nature that will use ingenious methods to avoid injury or minimize the degree of injury, and mimosa is one of them.

Mimosa? L) It is a loose shrubby herb of Leguminosae and Mimosa, with a plant height of1m; The stem is cylindrical and branched; Stipules lanceolate; The pinna is finger-shaped, and the lobules are linear and oblong; Flowers are many, reddish, spherical and have flower heads; Corolla campanulate; Pods are flat and rectangular; Seeds ovoid; The flowering period is March -65438+ 10, and the fruiting period is May-165438+ 10.

Mimosa is native to tropical America and widely distributed in tropical regions of the world. It is cultivated in Fujian, Guangdong, Guangxi, Yunnan, Taiwan Province and other provinces in China, and is born in wilderness and bushes. When touched by the outside world, the feathers and leaflets of mimosa close and droop, which can predict the weather changes. This action is understood as "shyness", so it is called mimosa, grass that knows shame and grass that is afraid of ugliness. Flower language is shy. Gorgeous language is as polite as bowing to others.

The whole plant of mimosa is used as medicine, which has the effect of calming the nerves. Fresh leaves are mashed and used externally to treat banded foam therapy. Mimosin is slightly toxic in the body and is often cultivated and ornamental in the Yangtze River basin.

Morphological characteristics of mimosa: loose, subshrub-like herb, as high as 1 m; The stem is cylindrical, branched, with scattered downward bending barbs and inverted barbs.

Stipules lanceolate, 5- 10 mm long, with bristles. Feathers and leaflets close and droop as soon as they touch; There are usually 2 pairs of pinions, which are arranged at the top of the total petiole with fingers and are 3-8 cm long; Leaflets 10-20 pairs, linear and rectangular, 8- 13 mm long and 0/.5-2.5 mm wide, with sharp apex and bristles at the edge.