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Results of: Search in every Kingdom for Scientific Name containing 'Ambrosia psilostachya'
 
 Kingdom Plantae
  Ambrosia psilostachya DC. – accepted – Cuman ragweed, western ragweed, perennial ragweed
  Ambrosia psilostachya var. californica (Rydb.) S.F. Blake – not accepted
  Ambrosia psilostachya var. coronopifolia (Torr. & A. Gray) Farw. – not accepted
  Ambrosia psilostachya var. lindheimeriana (Scheele) Blank. – not accepted
   

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