What are the Oldest Land Plants?

Land plants (English name: land plants) are a collective term for bryophytes, ferns and seed plants, most of which are so-called stem and leaf plants; they migrated from the water to the end of the Silurian Period about 400 million years ago A group of green plants formed on land, that is, evolved from green algae.

Land plant

Antarctica is isolated from the rest of the world

Land plants (40 photos)

Coupled with factors such as severe cold weather, dryness, strong wind, low sunshine, lack of nutrition, and short growing season, the growth of terrestrial plants is severely restricted, so there are few plants, no trees, no flowers, and not many higher plants. It has been found that most are lower plants, and only three flowering plants belong to higher plants. Among lower plants, there are more than 350 types of lichens, 370 types of moss, and 130 types of algae. The plants in Antarctica contrast sharply with the Arctic. Although the Arctic region is also cold and windy, the climate is variable, and the winter temperature is often below -60 ° C. Most regions are permafrost, but after all, it is not as cold as Antarctica. Therefore, the plants in the Arctic region are lusher than Antarctica There are many more kinds. There are more than 100 species of flowering plants, more than 2,000 species of lichens, more than 500 species of moss, and plants not found in Antarctica, such as these plants and gymnosperms. From this perspective, Antarctica is the land with the rarest plants on the planet.