Which invasive plant has stems that recline and root at the nodes with flat leaves and dense hairs at the collar?

The identification of the invasive plant is accurately attributed to Paragrass. This species is characterized by its unique growth habit, where the stems tend to recline and can root at the nodes. This allows Paragrass to spread effectively in aquatic environments. Additionally, its flat leaves and the presence of dense hairs at the collar area are distinguishing features that help in recognizing the plant.

Understanding the physical traits of Paragrass is crucial in the context of aquatic weed management. Recognizing these specific characteristics aids in the differentiation of Paragrass from other invasive species, which may exhibit different growth habits or leaf forms. This knowledge is vital for proper identification and implementing appropriate control measures.