Calamagrostis epigejos. Wood small reed.

Life-form & Growth Form:  

Hemicryptophyte. Herbaceous perennial. Rhizomatous, rhizome far-creeping.  

Flowering period: 

June and July.


Damp woodland, ditches, fen and dune-slacks. Un grazed/lightly grazed grasslands, sea cliffs, sand dunes, old quarries, roadside, railway banks. Light sands or heavy clays. 


Afforestation is very likely to have caused the loss of one of two Co. Derry populations. Quarrying and gradual loss of long-established woodland habitat at the third Co. Derry site has caused the population there to slowly decline over several decades. Each population is very small and spatially distant from each other, thereby greatly increasing the risk of regional extinction.

Distribution map:
Calamagrostis epigejos
Calamagrostis epigejos

For an interactive map follow this link to the BSBI webpage