Orthotrichum sprucei. Spruce’s Bristle-moss.

Life-form & Growth Form:

Small, perennial acrocarpous moss growing as scattered individual plants or in small tufts.  

Flowering period: 



An epiphyte on the trunks of waterside trees such as Alnus, Salix and Fraxinus, low down within the inundation zone, and so often silt-encrusted. 


Main threat is the removal of waterside trees. Afforestation of river margins. Eutrophication of river water. Changing flood management within a river channel leading to elevated or reduced flood levels.  

Static distribution map:
Orthotrichum sprucei
Orthotrichum sprucei