Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Lunaria -  Lunaria (common name honesty) is a genus of flowering plants in the family Brassicaceae native to central and southern Europe. It includes 3 species the annual or biennial L. annua (syn. L. biennis) the perennial L. rediviva.
The answer is:
Plant