Scleranthus uniflorus

Forms a dense green mat, on a single root system. Like a cushion. Very fine small leaves. Tiny single flowers followed by fruit on short stalks. Prefers an open sunny site with reasonable soil that does not get too dry. Great growing in amongst rocks, on garden edges. Do not allow other plants to shade it out. Grows naturally in parts of the South Island, coastal to high alpine, mostly on the drier mountains east of the Alps.