• Cladonia rangiferina (L.) F.H.Wigg.
Cladonia rangiferina
Click on map to open large map in new window
(Map updated: 11 August 2009)

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.
The map is generated through the NBN Gateway using their Interactive Mapping Tool.


This is the classic ‘Reindeer lichen’, with a rich-branching, pale grey, purple-tipped thallus. A good feature in identification is the thin, cottony webbing that surrounds the stems. Another is the one-directional orientation of the branch tips (clustered into four or three end-points). The thallus is K+ yellow. Exposed high, lichen-heath or cliff edges. Scattered across upland Ireland, except in the south.

Key characteristics

  • High, upland reindeer lichen (sometimes occurring lower), richly branching, purple-tipped
  • Stems webbed, cottony, ending in thick branch tips, all leaning to one side; the K+ yellow reaction separates it from C. arbuscula (described elsewhere) which is K negative.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Cladonia rangiferina (L.) F.H.Wigg.. [In] LichenIreland. Accessed on 2018-07-19.