monocotyledon造句

1、The herbicidal activity on dicotyledon weeds is better than on monocotyledon weeds.
对双子叶杂草的活性明显优于对单子叶杂草的活性。

2、The characteristics of the flora and resources of monocotyledon in Guangxi
广西单子叶植物区系及资源特点

3、In angiosperms there are 475 species of monocotyledon and 567 species of dicotyledon.
被子植物中单子叶植物475种，双子叶植物567种。