Smilax, bridal creeper
Yet another weed found locally - wrapping around the lower branches of a pohutukawa tree - definitely one to take out of the garden.
Scrambling or twining perennial that grows up to 3 m tall in supporting shrubs or hedges. The 'leaves' are actually green, flattened cladodes that resemble leaves. Flower small, greenish-white, followed by red berries. (An Illustrated Guide to Common Weeds of New Zealand)