中国植物种类异常丰富(单是高等植物就有284科,2,500余属,二万余种),其中有很多有用的种类很久以来就被劳动人民利用和研究。约在四千年以前,我们就有了相当发达的农业,“诗经”这部古代劳动人民的诗歌,很生动地描写了当时的农业生产情况,提到了200种以上的植物。“禹贡”很概括地叙述 There are exceptionally abundant plant species in China (284 families, more than 2,500 genera and more than 20,000 species of higher plants alone). Many useful species have been used and studied by working people for a long time. About four thousand years ago, we had developed agriculture. The poetry of the ancient working people in The Book of Songs vividly described the agricultural production at that time and referred to more than 200 kinds of plants. “Yugong ” is a very general description