Indiana Aquatic Pesticide Applicator Practice Exam

Curlyleaf pondweed (Potamogeton crispus) is known for its submersed growth habit, thriving in various aquatic environments. This species typically grows in water bodies where it can reach a maximum depth of around 12 feet, making it a quite versatile plant underneath the water surface.

The submersed nature of curlyleaf pondweed allows it to play a significant role in aquatic ecosystems, as it provides habitat and food for various aquatic organisms. Its leaves are finely dissected, resembling curls or waves, which contribute to its distinctive appearance underwater.

In contrast, floating plants or emergent vegetation do not accurately describe curlyleaf pondweed's growth characteristics. Floating plants lack the root structures found in curlyleaf, and emergent plants grow on shorelines or shallow areas with their foliage above water, rather than being fully submerged. Understanding the growth form of this plant is essential for effective management and control in aquatic environments, especially given its potential to impact native species and water quality.