Please answer the following question: Trollinger - Trollinger (or Schiava and Vernatsch) is a red German/Italian wine grape variety that was likely first originally cultivated in the wine regions of South Tyrol and Trentino but today is almost exclusively cultivated on steep sunny locations in the Wurttemberg wine region of Baden-Wurttemberg. It is primarily known under the synonyms Trollinger in Germany Vernatsch in South Tyrol and Schiava in other Italian regions. 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