北美东部产的一种普通水生植物，飘浮叶长圆形至倒卵形，基部常具缺刻，花白色，有黄斑点。
Common aquatic plant of eastern North America having floating and submerged leaves and white yellow-spotted flowers.
淡水植物和动物图片。草飘浮物在美国的一条河流。河流栖息地，称为河岸系统，通常包含茂密的植被和大量的动物的种类。
Grass floats in a river in the United States. River habitats, called riparian systems, often contain lush vegetation and a wealth of animal species.
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