Here are a few examples.
1. Wind propagation. Plants that are spread by the wind usually develop appendages that look like wings or feathers. When the wind blows, these plants will ride on the wind and travel to distant places to grow and reproduce. Those that use this method to spread include dandelions, poplars, willows, Chongqing trees and maples.
2. Spread by animals (fur). Birds or other animals eat the seeds into their stomachs. Since they cannot be digested, they are excreted in their feces and spread in all directions. Spread by squirrels is carried out by animals during the process of carrying seeds. Furry animals carry cocklebur seeds while walking, thereby spreading them. Representative plants include cherries, pine cones, cockleburs, etc.
3. Spread by water. The coconut trees growing on the seaside wait until they mature and fall to the seaside. The coconuts drift with the sea to other islands, where they grow. When the water lily fruits mature, they sink into the water. After the peel rots, the seeds of the spongy outer testa are released. It will float and float to other places. According to statistics, there are more than 100 kinds of seeds spread by ocean currents around the world. Representative plants include coconut, water lily, etc.
4. Mechanical communication. The fruits of impatiens will pop open and scatter the seeds in all directions. This is the method of mechanical dispersal. Many legumes also use mechanical dispersal of seeds. Representative plants include peas and impatiens.