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<p>多年生水生草本。叶柄及花梗常有刺;叶下蓝绿色,圆形,直径25-90厘米,纸质。花直径10-23厘米;萼片4-5,花瓣多数;花托鸡冠状凸起,螺旋状。果实长圆形至卵球形。花期6-8月,果期8-10月。生池沼或河流中。中国大部分地区有栽培。全世界大部分地区有栽培。</p><p>Perennial aquatic herbs. Petioles and pedicels usually with spines; leaves abaxially blue-green, orbicu­­lar, 25-90 cm diam, papery. Flowers 10-23 cm diam; sepals 4-5, petals numerous; receptacles accrescent, turbinate. Fruits oblong to ovoid. Fl. Jun-Aug. Fr. Aug-Oct. Ponds or rivers. Cultivated in most parts of China. Also cultivated in most parts of the world.</p>
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