To provide artificial aquatic plants which cause natural fluctuation like natural weeds even with a slight water flow in a water tank.SOLUTION: Artificial aquatic plants having three-dimensional shaped leaves extending from flexible rod-like stems, only the stem of which is made of foamed silicone rubber. In addition, a plurality of constricted portions are provided in the stem portion, and the joint portion of the leaf portion to which the plurality of leaves are bonded is fitted to the constricted portion of the stem portion. Further, the leaf portion is made of a synthetic resin having a lower flexibility than that of the foamed silicone rubber and having a specific gravity of less than 1.(FIG.【課題】水槽内のわずかな水流であっても、天然の水草のような自然な揺らぎを生じる人工水草を提供することである。【解決手段】可撓性のある棒状の茎部から立体形状の葉部が伸びた人工水草であって、その茎部のみが発泡シリコーンゴム製である。また、茎部には複数の括れ部を備え、複数の葉が結合した葉部の結合部が茎部の括れ部に嵌着している。さらに、葉部は発泡シリコーンゴム製よりも可撓性の低い、比重が1未満の合成樹脂製である。【選択図】図2