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在西鄂尔多斯高原上的乌海地域，有一种珍稀濒危植物——四合木，被国家列为二级重点保护植物。据研究，它是距今７０００万年前第三纪以前的残存植物，起源于蒙古南大陆热带地区，是古地中海南岸热带成份的孑遗种，被学术界称为“活化石”，是植物界中的大熊猫。由于四合木的
In the Wuhai area on the west Ordos Plateau, there is a rare and endangered plant - Tetraena mongolica, which is listed by the state as a second-level key protected plant. According to the study, it is a remnant plant of the Tertiary age 70 million years ago. It originated from the tropical areas of the southern mainland of Mongolia. It is a relict species of tropical ingredients on the southern coast of the ancient Mediterranean Sea. It is called “living fossil” by the academic circles, Giant panda Thanks to the quadwood