any aquatic plant of the genus Ceratophyllum; forms submerged masses in ponds and slow-flowing streams
liverworts with slender hornlike capsules
hornwort详细解释
horn.wort n.（名词）Any of several submerged plants of the genusCeratophyllum, forming branched masses in quiet water and having finely dissected, whorled leaves and minute unisexual flowers. 角苔：一种金鱼藻属 的水下植物，在风平浪静时会形成纵横交错的树枝网，生有轮生的多裂叶，开极小的单性花
