Cuman Ragweed
Ambrosia psilostachya DC.

Ambrosia psilostachya is a species of ragweed in the Asteraceae family, commonly known as Cuman Ragweed. It is native to North America and has been reported in several Canadian provinces and European countries, including Belgium, France, the Netherlands, and Great Britain. The species was first described in 1836.
Description
Ambrosia psilostachya, known as Cuman Ragweed, is a member of the Asteraceae family. It is found in regions such as Alberta, British Columbia, Manitoba, Nova Scotia, Ontario, Prince Edward Island, Quebec, and Saskatchewan in Canada, as well as in parts of Europe. The species was first published in 1836 and is also referred to as perennial ragweed and western ragweed in some regions.
Other common names
Cuman RagweedDunbible-WeedNaked-Spine AmbrosiaPerennial RagweedRoman WormwoodWestern Ragweed
Distribution
Alberta · British Columbia · Manitoba · Nova Scotia · Ontario · Prince Edward Island · Quebec · Saskatchewan · NO · TW · RU · ZA · Belgium · Brussels-Capital Region · Flemish Region · Walloon Region · France · The Netherlands · Great Britain · GB · IT · DK · BY · GR · SE · Vermont-US · CZ · EE · SI · RO
Synonyms
Ambrosia peruvianaAmbrosia californicaAmbrosia hispidaAmbrosia californica subsp. californicaAmbrosia artemisiifolia var. trinitensisAmbrosia psilostachya var. californicaAmbrosia psilostachya var. psilostachyaAmbrosia psilostachya var. coronopifoliaAmbrosia psilostachya var. lindheimerianaAmbrosia coronopifoliaAmbrosia rugeliiAmbrosia lindheimeriana
