Which feature is NOT associated with torpedograss?

Torpedograss is characterized by distinct features that help in identifying this tough and persistent weed. Among these features, wide-spreading roots are not associated with torpedograss. Instead, torpedograss is known for having a shallow, but extensive, root system that does not spread widely beyond its immediate area. Understanding the root structure is crucial as it influences the plant's ability to compete with other vegetation and recover from control measures.

On the other hand, torpedograss does have pointed rhizomes, which are vital for its aggressive growth pattern and ability to propagate vegetatively. The presence of fine hairs at the leaf base is another distinctive characteristic that aids in its identification, as well as the rolled leaves adorned with fine hairs, which add to its unique morphology. Recognizing these defining features can assist in proper identification and management strategies in aquatic pest control practices.