Bronze New Zealand burr (Acaena microphylla) belongs to the Rosaceae(the Rose family). It is a rhizomatous根茎の perennial herb that is native to New Zealand. This herb grows in alpine mountains, and up to a height of 5-10 cm. The stems are mat-forming, equal to or less than 25 cm long. The leaves are impari-pinnate with 9-15, orbicular leaflets. The leaflets are 5-7 obtuse鈍頭の serrated, green or bronze and shining on upper surface, glaucescent帯白色の and sparsely hairy on lower surface. Evergreen in mild winter regions. The apetalous花弁のない flowers bloom in capitulum from June to August. They are greenish at first and mature into copper-red burrs. This plant is used as a ground cover.