Viviparous plants What plants are viviparous plants?

1, Mangroves: Mangroves live by the sea, and mature individuals has a salt drainage system. The salinity of seawater is not conducive to the development of seeds. After plant seeds are planted, because they do not contain a certain amount of water like animal eggs, plant seeds need to absorb water to germinate. However, the osmotic pressure caused by high salt in seawater can't make water molecules enter the seeds, which hinders the seed reproduction. This forced mangroves not only to reproduce themselves, but also to evolve viviparous ways to cope with the harsh living environment.

2. Papaya: The breeding method of papaya is very special. The seeds of some plants are different from others when they mature. One is not to leave the mother, and the other is to absorb the nutrition of the mother and germinate. Only at a certain stage can we leave our mother's body and live independently. Seedlings separated from their mothers are like cubs born by animals, so people call plants that propagate in this way viviparous plants. Papaya is one of viviparous plants.

3. Apocynum venetum: spores are often produced on the back of pinnate compound leaves, also known as viviparous Apocynum venetum. There are spoon-shaped lobular spores on both sides of the main vein of the posterior vein of the leaf. After the old leaves wither and fall off, the spores fall to the ground and grow alone.

4, red onion: the terminal umbel has a large number of beads, and there are several flowers in the middle. Often, the beads send out tender leaves on the inflorescence and become new plants.

5. Garlic: The breeding of garlic is very interesting. It does not rely on seeds, but on fleshy stems. When the succulent stems grow for a certain period of time, the abdomen will be "pregnant" and granulation will grow. The granulation is covered with a silver-gray film for protection.