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Tall buckwheat facts for kids

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Tall buckwheat
Fagopyrum cymosum.jpg
Scientific classification
Synonyms
  • Coccoloba cymosa Lour.
  • Fagopyrum acutatum Mansf. ex K.Hammer
  • Fagopyrum chinense Raf.
  • Fagopyrum dibotrys (D.Don) H.Hara
  • Fagopyrum megaspartanium Q.F.Chen
  • Fagopyrum pilus Q.F.Chen
  • Fagopyrum triangulare Meisn. ex Wall.
  • Fagopyrum tristachyum (H.Lév.) Gross
  • Helxine acutata Kuntze
  • Oxygonum tristachyum (Baker) H.Perrier
  • Polygonum acutatum Lehm.
  • Polygonum cymosum Trevir.
  • Polygonum dibotrys D.Don
  • Polygonum labordei H.Lév. & Vaniot
  • Polygonum tristachyum Baker
  • Polygonum tristachyum H.Lév.

Fagopyrum cymosum, also known as tall buckwheat, is a domesticated plant used in traditional Chinese medicine, for animal feed, and as an ornamental plant. It is native to much of China, and to Bhutan, Nepal, India, Burma, and Vietnam.

Chemistry

The flowers are known for their high content of fagopyrin, a naphthodianthrone that provokes phototoxic effects known as fagopyrism.

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