title: Tachiadenus
text: # Tachiadenus
  
  Tachiadenus is a plant genus in the gentian family (Gentianaceae), tribe Exaceae. It contains 12 species. The genus is endemic to Madagascar.
  
  ## Species
  
  The following species are recognised:
  
  * Tachiadenus antaisaka Humbert
  * Tachiadenus boivinii Humbert ex Klack.
  * Tachiadenus carinatus Griseb.
  * Tachiadenus gracilis Griseb.
  * Tachiadenus longiflorus Griseb.
  * Tachiadenus longifolius Scott Elliot
  * Tachiadenus pervillei Humbert
  * Tachiadenus platypterus Baker
  * Tachiadenus tubiflorus Griseb.
  * Tachiadenus umbellatus Klack.
  * Tachiadenus vohimavensis Humbert
  