Please answer the following question: Xiphopteris is a defunct genus of ferns in the family Polypodiaceae. The name is derived from two Greek words: xiphos sword and pteris fern.The name Xiphopteris can no longer be used because its type species Xiphopteris serrulata has been transferred to Cochlidium. Because Xiphopteris is polyphyletic some of its species were not transferred to Cochlidium with the type species. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Plant