Coeloglossum viride

Coeloglossum viride

Scientific Classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Asparagales
Subfamily: Orchidoideae
Tribe: Orchideae
SubTribe: Orchidinae
Genus: Coeloglossum
Species: C. viride
Binomial name
Coeloglossum viride
[L.]Hartm. 1820

Coeloglossum viride is a monotypic genus of the family Orchidaceae


Plant arises from fleshy, forked roots and ranges in height from 10-55 cm. Leaves of the Frog Orchid are 5-14 cm long and 2-7 cm wide; leaves at the base of the orchid are obovate to elliptical, while leaves higher on the stem become lanceolate. Two to six leaves are found one one plant, and leafing is alternate. Plants are evergreen.

Inflorescence of the orchid is a dense spike-like cluster containing 7 to 70 small flowers. Flowers are greenish in color, and often tinged with purple, reddish, or red-brown color. Flowers are subtended by conspicuous long, tapering bracts which are 1-6 cm long, with the lower bracts longer and typically greatly exceeding the length of the flower. Sepals are oval with little or no point, 3-7 mm long and 2-4 mm wide and dark green. Sepals join with petals to form a hood opposite the lower petal of the flower. Petals are long and narrow, 3.5-5 mm long and about 0.5 mm wide, and curve inwards. The lower petal is strap-shaped and usually split at the very tip to form two or three tooth-like divisions, with the middle tooth smaller than the others. It is 5-11 mm long and 1-4 mm wide. A 2-3 mm long nectar spur projects behind the labellum.

The Frog Orchid flowers in late spring to summer with many up to 1.25 cm wide fragrant flowers.. It is either pollinated by bees and small wasps, or reproduces autogamously by incoherent pollina.

The Frog Orchid can be mistaken for the Pale Green Orchid, but can be best distinguished by the labellum, which is notched at the apex and does not have the tubercle of the Pale Green Orchid.


Plants are found within the palearctic ecozone throughout the mid to northern United States through Canada, and in the British Isles and parts of Western Europe. It is typically found growing in moist, rich soil in wet meadows, moist or wet deciduous woods and thickets, and is frequently found on steep slopes in the upper montane forest at elevations of 100 to 4500 meters


Plants require moderate lighting and cool to cold temperatures. Plant can be grown in a mixture of peat and bark with garden soil. Water regularly about every one to two weeks when the potting media is dry.


Common Names: The Greenish Coeloglossum, Long-Bracted Green Orchid, Frog Orchid

The generic name is derived from the Greek koilos glossum meaning "hollow tongue," referring to the hollow spur on the tongue-like labellum


Coeloglossum viride plate

Coeloglossum viride plate from Orchideen Deutschland

  1. Chamorchis viridis [L.] Dumort. 1827
  2. Coeloglossum bracteatum (Willd.) Parl. 1850
  3. Coeloglossum bracteatum (Willd.) Schltr. 1920
  4. Coeloglossum coreanum (Nakai) Schltr. 1920
  5. Coeloglossum erdingeri A. Kern. 1864
  6. Coeloglossum islandicum (Lindl.) Kom. 1927
  7. Coeloglossum kaschmirianum Schltr. 1920
  8. Coeloglossum nankotaizanense (Masam.) Masam. 1968
  9. Coeloglossum taiwanianum S.S.Ying 1975
  10. Coeloglossum vaillantii Schur 1866
  11. Coeloglossum viride subsp. bracteatum (Muehl.) Soo
  12. Coeloglossum viride subsp. bracteatum (Willd.) Hult
  13. Coeloglossum viride subsp. coreanum (Nakai) Satomi 1969
  14. Coeloglossum viride var. bracteatum (Willd.) Rchb. f.
  15. Coeloglossum viride var. islandicum (Lindl.) Schulze 1898
  16. Coeloglossum viride var. virescens (Muhl. Ex Willd.) Luer
  17. Dactylorhiza viridis (L.) R.M.Bateman, Pridgeon & M.W.Chase 1997
  18. Dactylorhiza viridis var. virescens (Muhl. ex Willd.) ined.
  19. Entaticus viridis (L.) Gray 1821
  20. Gymnadenia bracteata (Willd.) C. Presl. 1827
  21. Gymnadenia viridis [L.] Rich. 1818
  22. Habenaria bracteata (Willd.) R. Br 1813
  23. Habenaria viridis [L.]R. Br. 1813
  24. Habenaria viridis var. bracteata (Willd.) A. Gray 1867
  25. Herminium nankotaizanense Masam. 1932
  26. Himantoglossum viride (L.) Rchb. 1830
  27. Orchis batrachites Schrank 1786
  28. Orchis bracteata Willd. 1805
  29. Orchis coreana Nakai 1914
  30. Orchis ferruginea (F.W.Schmidt) F.W.Schmidt 1795
  31. Orchis obsoleta Muhl. ex Willd. 1805
  32. Orchis virens Scop. 1772
  33. Orchis virescens Muhl. ex Willd. 1805
  34. Orchis viridis [L.] Crantz 1769
  35. Orchis viridis var. vaillantii Ten. 1831
  36. Peristylus bracteatus Lindl. 1835
  37. Peristylus islandicus Lindl. 1835
  38. Peristylus montanus Schur 1866
  39. Peristylus virescens (Muhl. ex Willd.) Lindl. 1835
  40. Peristylus viridis (L.) Lindl. 1835
  41. Platanthera bracteata Torr. 1843
  42. Platanthera islandica (Lindl.) Kraenzl. 1931
  43. Platanthera nankotaizanensis (Masam.) Masam. 1932
  44. Platanthera viridis [ L.]Lindley 1829
  45. Satyrium alpinum Schmidt 1893
  46. Satyrium bracteale Salisb. 1812
  47. Satyrium bracteatum Pers. 1807
  48. Satyrium ferrugineum F.W. Schmidt 1893
  49. Satyrium fuscum Hudson 1761
  50. Satyrium lingulatum Vill. 1787
  51. Satyrium virescens (Muhl. ex Willd.) Pers. 1807
  52. *Satyrium viride Linne 1753
  53. Sieberia viridis (L.) Spreng. 1817
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