The grasses that grow on the coastal dunes go by several names (Marram Grass, Bent Grass, Beachgrass, since you asked). What’s so special about these grasses is that they can survive under extreme circumstances. Moreover, in photography they create a very distinct atmosphere as you can see in the following pictures below.
beach bum by Pattys'photos
Starburst and Beach Grass On Turquoise by D. Sharon Pruitt
Birds of a feather flock together; Sand dunes, Dornoch beach by John Haslam
Beneath the veil lies my darkness. by Amy Clarke
Image by Ginny
♥ Winterton-on-Sea Beach by CharisseJoyChu
Sea Grass by Simon Greening
Image by amanda tetrault
Source:http://www.photographyblogger.net/20-distinct-dune-grass-pictures/