What plant looks like rhubarb and grows near water?

The plant that resembles rhubarb and often grows near water is called dock (genus Rumex). It features large, broad leaves similar to those of rhubarb but typically has a more elongated shape. Common species, like curly dock (Rumex crispus), thrive in wet areas and can be identified by their reddish stems and distinctive seed heads. Dock is often considered a weed, but its leaves are edible when cooked.