霍香蓟属（学名：Ageratum）是一个菊科之下的属，约包含了40到60种热带美洲香草，一年生或多年生皆有。

• 藿香蓟（Ageratum conyzoides）

Ageratum (/əˈdʒɛrətəm/), (whiteweed in the USA), is a genus of 40 to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, tribe Eupatorieae. Most species are native to Central America and Mexico but four are native to the United States.