Please answer the following question: Aponogeton ulvaceus is a submerged aquatic plant with a small cone shaped slightly hairy rhizome about 1.18 inches (30mm) in diameter. The leaf blades have a base that tapers gradually pale green in colour (reddish under intense light) 20+ inches (50+ cm) long and 3 inches (8 cm) broad with a wavy margin on petioles of an equal length and in appearance slightly translucent. A single bulb may produce up to forty leaves in good conditions. No floating leaves are formed. 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?
A:
Plant