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. Das Antas River (Tibagi River) -  The Das Antas River (Tibagi River) is a river of Paraná state in southern Brazil.
Answer: Natural Place

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. Crataegus calpodendron -  Crataegus calpodendron is a species of hawthorn native to much of the eastern United States and to Ontario Canada. The common name late hawthorn refers to the flowering time which is later than most North American hawthorns.
Answer: Plant

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. Metaxyaceae -  The Metaxyaceae is a neotropical family of ferns in the order Cyatheales. The two species of the single genus Metaxya are characterized by large fronds that approach eight feet (2.5 m.) in length.
Answer:
Plant