Although ageratum and pseudoodorum belong to Compositae, ageratum belongs to ageratum, pseudoodorum belongs to Eupatorium, they belong to different genera of the same family.
The leaves of Ageratum ageratum are broad ovate or ovate, the leaves are round, the serrations are blunt, the edge serrations are not obvious, while the leaves of pseudoodorum are ovate, wide ovate or rhombus, the leaves are sharp, the edge serrations are obvious. In terms of the smell of leaves, after rubbing the leaves of pseudoodorous grass, you can smell a kind of irritant smell similar to cat urine, while the smell of Ageratum is relatively light.
The difference is obvious. The involucre of Ageratum is cup-shaped, while that of pseudoodorum is long tube or bell shaped.
Although both of them are invasive species, ageratum has certain ornamental value and medicinal effect. At present, it seems that the only harm of pseudoodorous grass is to prevent and control pseudoodorous grass is a more important task, because the exclusion of other grasses in the place where they go seriously affects the plant diversity of the area. Moreover, it can seriously consume soil nutrients, destroy soil fertility and arable, in addition, it can secrete a toxic odor, which is not conducive to livestock foraging.
