Achyranthes is a genus of medicinal and ornamental plants in the amaranth family, Amaranthaceae. Chaff flower is a common name for plants in this genus.

Species include:

• Achyranthes ancistrophora C.C.Towns.
• Achyranthes arborescens R.Br.
• Achyranthes aspera L. (= A. argentea) (Sanskrit : apamarg (अपामार्ग))
• Achyranthes atollensis (extinct)
• Achyranthes bidentata Blume
• Achyranthes coynei Santapau
• Achyranthes diandra Roxb.
• Achyranthes fasciculata (Suess.) C.C.Towns.
• Achyranthes faureri
• Achyranthes japonica (Miq.) Nakai
• Achyranthes mangarevica Suess.
• Achyranthes marchionica R.Br.
• Achyranthes margaretarum de Lange
• Achyranthes mutica A.Gray ex H.Mann
• Achyranthes shahii M.R.Almeida & S.M.Almeida
• Achyranthes splendens Mart. ex Moq.
• Achyranthes talbotii Hutch. & Dalziel

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