Hydrilla is an invasive submerged aquatic plant that poses a significant threat to lakes, ponds, and waterways across much of the United States. It has slender stems with leaves arranged in whorls of 4–8, featuring toothed margins and a toothed mid-rib. Hydrilla spreads aggressively through fragmentation, stolons, and hardy underground tubers that can survive winter conditions, making it extremely difficult to control. Once established, it forms dense mats that outcompete native vegetation, reduce oxygen levels, and interfere with recreational activities like boating and fishing. Early detection and proactive management are crucial to preventing its spread and protecting aquatic ecosystems.

⚠️  Invasive Species