title: Tetrachyron
text: # Tetrachyron
  
  Tetrachyron is a genus of Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.
  
  ## Species
  
  * Tetrachyron brandegeei (Greenm.) Wussow & Urbatsch - Oaxaca, Puebla
  * Tetrachyron discolor (A.Gray) Wussow & Urbatsch - Hidalgo
  * Tetrachyron grayi (Klatt) Wussow & Urbatsch - Tamaulipas, Nuevo León
  * Tetrachyron manicatum Schltdl. - Oaxaca, Veracruz
  * Tetrachyron orizabaensis (Klatt) Wussow & Urbatsch - Guatemala, Chiapas, Oaxaca, Puebla, Veracruz
  * Tetrachyron torresii B.L.Turner - Oaxaca
  * Tetrachyron websteri (Wussow & Urbatsch) B.L.Turner - Tamaulipas, Hidalgo, Querétaro
  
  ## formerly included
  
  see Calea
  
  