Mukdenia rossii 'Karasuba' or Mukdenia rossii 'Crimson Fans' is a selected cultivar of Mukdenia rossii, a choice woodlander from China and Korea with strongly dissected palmate foliage that resembles a maple and - like a maple - turns bright crimson in the autumn. The spray-like inflorescence of tiny white flowers is borne in early Spring - usually from March - and the flowers are delicate, elegant and utterly charming. The developing buds have a soft pink calyx and when opened the flowers have greenish-white filaments and dark wine-red anthers. A minute flower that rewards close inspection. Gorgeous.