Coprosma acerosa, tataraheke or sand coprosma is endemic to the  North, South, Stewart and Chatham Islands. It is a coastal plant found on the landward side of sand dunes, and will grow in sun or semi-shade, dry or free draining moist conditions. It is a sprawling, bushy native plant with very narrow, sharp-pointed, yellowish or brownish leaves, and the female plants produce white or blue fruit March to April that are attractive to birds and lizards. It is Not Threatened but rapidly becoming scarce in large parts of its range, and it seems to resent dune reclaimation and competition from marran grass (Ammophila arenaria)