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Results of: Search in every Kingdom for Scientific Name containing 'Sonchus asper'
 Kingdom Plantae
  Sonchus asper (L.) Hill – accepted – spiny sowthistle, prickly sow thistle, prickly sowthistle, spiny-leaf sow-thistle, perennial sowthistle
  Sonchus asper ssp. asper (L.) Hill – not accepted – spiny sowthistle
  Sonchus asper ssp. glaucescens (Jord.) J. Ball – not accepted – spiny sowthistle

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