How many subclasses are there in China?

There are more than 2700 genera and 30000 species of angiosperms known in China. Angiosperms are closely related to human beings. For example, there are more than 2,000 angiosperms that can provide food in China. There are more than 300 kinds of fruit trees; There are countless flowers and plants; Medicinal angiosperms 10 027 species (including taxonomic units below species), accounting for 90% of the total number of medicinal plants in China, are the groups with the largest number of medicinal species, and the vast majority of traditional Chinese medicine comes from angiosperms.

Extended data:

654.38+64 million years ago, scientists in China discovered a herbaceous plant fossil in the Middle Jurassic stratum. The discovery of the earliest known herbaceous angiosperms in the world has prompted people to re-examine the evolution view of angiosperms put forward by predecessors. This research result was published as a cover article in the English edition of Geological Journal recently published in China. ?

Baidu encyclopedia-angiosperms

People's Daily Online-Scientists in China discovered the earliest fossil of herbaceous angiosperms in the world.