AT LA DUNE DE BOUCTOUCHE
The most important plant here at the Dune and to the coastal environment would be Marram grass, or what we locally as Dune grass! This long slender grass grows up to 1 meter tall with roots plunging between 2 and 4 meters into the sand and beach cobble, helping to stabilize the shifting sands from storms. Marram grass is termed a halophyte, meaning it can shrug off the effects of salt spray and salt water amongst its roots through special adaptation mechanisms that range from special glands that exude the salt to special leaf coatings to reduce the amount of salt the plant takes in. Only 1-2% of the worlds flora are halophytes. In addition to being salt tolerant, marram grass is also tolerant to very cold winter temperatures but it cannot withstand human disturbances such as walking or driving on it.