Please answer the following question: Zea diploperennis -  Zea diploperennis is a true grass species in the genus Zea and a teosinte.Zea diploperennis is perennial. Virtually all populations of teosinte are either threatened or endangered: Zea diploperennis exists in an area of only a few square miles. The Mexican and Nicaraguan governments have taken action in recent years to protect wild teosinte populations using both in-situ and ex-situ conservation methods. 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