Mertensia maritima. Oyster plant.

Life-form & Growth Form:

Hemicryptophyte. Herbaceous perennial. Little/no vegetative spread. 

Flowering period: 

July and August.  


Upper reaches of shingle and gravel shoreline, occasionally also on sand. Earth and rock mounds deposited along the coastline.  


Illegal shingle and gravel extraction. Coastal squeeze due to climate change and reclamation of upper shoreline for agricultural use, private or commercial development. Natural unpredictable, variable and generally increasing storms. Excessive trampling by the public. 

Static distribution map:
Mertensia maritima
Mertensia maritima
For an interactive map follow this link to the BSBI webpage