About Coprosma acerosa A.Cunn.
This species, Coprosma acerosa A.Cunn., is a low-growing plant with slender, flexible branches that grow in a sprawling to prostrate habit. Its branches and smaller branchlets interlace to form a roughly cushion-shaped mass that is typically around 2 meters across, and occasionally reaches up to 2 meters in height. Small branchlets very often have yellowish brown bark, and are pubescent when young. Leaves grow in opposite pairs or fascicles, attached to yellowish petioles. Stipules range in shape from rounded-obtuse to broadly triangular, are somewhat pubescent, and have fine ciliolate margins. The leaf blade is coriaceous, yellowish green, linear with an obtuse tip, and measures 7-12 mm long by 1-1.5(rarely 2) mm wide; only the midrib is clearly visible. Flowers are solitary, growing at the end of short branchlets. Male flowers have either no calyx or a only a vestigial calyx; the corolla is funnelform, with ovate-oblong, subacute lobes that are roughly equal in length to the corolla tube. Female flowers have acute, narrow-triangular calyx teeth; the corolla is funnelform, with narrow-oblong, obtuse lobes. The fruit is a globose drupe around 7 mm in diameter, it is translucent, ranges from very pale to pale blue, and often has darker flecks.
