Q:Mammillaria morganiana -  Mammillaria morganiana common name Owl’s eyes or Owl-eye pincushion is a cactus in the genus Mammillaria belonging to the family Cactaceae. The epithet morganiana honors the U.S. optometrists Meredith WalterMorgan (1887-1957) of Richmond. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Plant