Crambe maritima. Sea kale.

Life-form & Growth Form:  

Hemicryptophyte. Herbaceous perennial. Little vegetative spread, the crown of the plant grows under the surface to produce multiple shoots.  

Flowering period: 

July to August.

Habitats: 

Coastal shingle. Coastal dunes, strandlines, cliffs. Lowland.

Threats:

Disturbance of shingle habitats by walkers. Illegal shingle extraction. Coastal squeeze caused by climate change and agricultural enclosure and improvement of uppermost shoreline. Historically also picked and used as a vegetable. Sea defence work and increasingly winter storms which have intensified in number and strength. 

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