Green marram grass (Ammophila arenaria) and orange pīngao (Desmoschoenus spiralis), an endemic sedge, grow on fore dunes (those closest to the beach) at Mason Bay on Stewart Island. Marram grass was introduced as part of efforts to farm the area in the 1930s. Since 1958, when it was first monitored, the marram grass has spread steadily. By 1998 it completely covered the foredunes and was moving inland. In 2000 the Department of Conservation began spraying the herbicide Gallant, which kills grasses but not sedges, with the aim of eradicating marram grass at Mason Bay.
Using this item
Photograph by Carl Walrond
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.