Cornish Biodiversity Network  -  Supporting Wildlife Recording

   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z restore

Cornish Red Data (2009)

The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.

Coeloglossum viride - Frog Orchid

Range & Status

Native. Circumpolar Boreal-montane orchid. Found throughout Britain and Ireland, in

base-rich situations, and in southern Britain mainly in chalk and limestone areas.

Regional Distribution

Always rare in Cornwall and only two sites before 1986. In 1986 about 4000 plants were found growing in fields around the newly created Colliford Reservoir (SX17), as water levels reached their maximum. A few plants have been recorded since that year, up until 1995. Repeated searches since then have been unsuccessful.

Habitat & Ecology

Found in grazed, short, acid grassland.


Overgrazing of grassland around edge of reservoir.


The site is adjacent to the Cornwall Wildlife Trust nature reserve.


I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.

The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.

Cornish Biodiversity Network. 2017.