Ambrosia psilostachya is a species of ragweed known by the common names Cuman ragweed and perennial ragweed, and western ragweed.
The plant is widespread across much of North America (United States, Canada, and northern Mexico). It is also naturalized in parts of Europe, Asia, Australia, and South America. It is a common plant in many habitat types, including disturbed areas such as roadsides.
Ambrosia psilostachya is an erect perennial herb growing a slender, branching, straw-colored stem to a maximum ...
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*All information is based on published scientific research