Sparganium emersum is a species of flowering plant in the cat-tail family known by the common name European bur-reed. It has a circumboreal distribution occurring throughout the northern latitudes of Eurasia and North America. It is an aquatic plant growing in shallow water bodies such as ponds and streams. It can become abundant at times. It is a perennial herb producing a floating stem up to 2 meters long. 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