The main methods for plant seeds to spread are: animal spread, wind spread, water spread, and ejection spread

1. Spread by water

Coconut: by water After the coconut is mature, the coconut fruit falls into the sea and floats far away with the sea water.

Water lilies: The fruits of water lilies sink to the bottom of the water when they are ripe. After the peel rots, the seeds wrapped in the spongy outer testa will float and float to other places.

2. Spread by birds or other animals

Cherry, wild grape, wild ginseng: the seeds are eaten by birds or other animals. Since they cannot be digested, they will cause diarrhea. It is excreted in feces and spreads in all directions.

Pine nuts: They are taken away by squirrels when they store food for winter.

3. Spread by wind

Red willow: The seeds are spread far away by the flying catkins.

Dandelion: The achene of dandelion, a plant in the Asteraceae family. When mature, the pappus spreads out, like a parachute, flying in the wind and spreading the seeds far away.

4. There is also a method of mechanically spreading seeds.

Impatiens: The fruits of impatiens will pop and pop the seeds in all directions. This is a method of mechanically spreading seeds.

Many legumes use mechanical seed dispersal.

Extended information:

Mammal transmission

Mammal transmission is mostly from medium to large fleshy fruits or dried fruits. Generally speaking, mammals are relatively large and have large food needs, so they will choose some large fruits.

For example: macaques like to eat the fruits of persimmons and plantains, and also help these plants spread. When the seeds mature, most of them will automatically fall near the plants, and their growing space will be affected to a certain extent. Therefore, they will use various methods to spread their seeds to distant places, and the methods of spread can be roughly divided into They are the following:

1. Use wind power to spread:

Some seeds or fruits will have hairs and will float to distant places when the wind blows, such as dandelions and blackboards. Trees, Showa grass...etc.

2. Use animals to spread:

If you walk in the grass, there will be many seeds or fruits of plants stuck to your clothes or pants, or to the bodies of other animals. Or on animal food such as thorngrass, fig tree, plantain...etc.

3. Use elasticity to spread:

If the ripe fruit is lightly touched, the fruit will split, and the seeds will be ejected using the elasticity of the peel, such as African impatiens. , sheep's hoof beetle, redbud...etc.

Reference: Baidu Encyclopedia - Seeds