Zeuxine exilis

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Ridley’s Ground Orchid
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Cranichideae
Subtribe: Goodyerinae
Genus: Zeuxine
Species: Z. exilis
Binomial name
Zeuxine exilis
Ridl., 1906[1]

Zeuxine exilis, commonly known as Ridley’s Ground Orchid or Ridley’s Jewel Orchid, is a terrestrial orchid belonging to the subfamily Orchidoideae. It is endemic to Christmas Island, an Australian territory in the north-eastern Indian Ocean.


The orchid was first recorded and collected in October 1904 by the first director of the Singapore Botanic Gardens, Dr Henry Ridley. It was then not officially recorded for over a century; in the third Christmas Island National Park Management Plan (2002) it was considered possibly extinct.[2] Then in 2009 it was found and collected again by visiting research scientist Dr Peter Green.[3][4]



  1. ^ Ridley (1906).
  2. ^ Cochrane (2002).
  3. ^ Christmas Island National Park News (2009-11).
  4. ^ Green et al. (2010).


  • Cochrane, Peter (Director of National Parks) (2002). Third Christmas Island National Park Management Plan (PDF). Commonwealth of Australia. ISBN 0-642-54828-9. 
  • Green, P. T.; Claussen, J. & O'Dowd, D. J. (2010). "Lost for a century: rediscovery of the endemic Ridley's jewel orchid, Zeuxine exilis Ridl., on Christmas Island, Indian Ocean.". The Gardens' Bulletin Singapore. 62: 319–326. 
  • Ridley, H.N. (June 1906). Journal of the Straits Branch of the Royal Asiatic Society. 45: 236.  Missing or empty |title= (help)
  • "Christmas Island orchid rediscovered!". Christmas Island National Park News. Dept of Sustainability, Environment, water, Population and Communities, Australia. November 2009. Retrieved 2010-11-18.