Which invasive plant is known for its hollow stems that root at the nodes?

The invasive plant recognized for its hollow stems that root at the nodes is alligatorweed. This plant is part of the aquatic ecosystem and often spreads aggressively in water bodies, contributing to its classification as an invasive species. The hollow stems allow it to float on water, facilitating dispersal and colonization in new areas. Additionally, rooting at the nodes enables the plant to establish itself more effectively in various environments, making it a particular concern for water management and aquatic weed control practices in Florida. This characteristic of alligatorweed contributes to its invasive nature, as it can create dense mats that disrupt aquatic ecosystems and hinder native vegetation.