Hollow plants are a type of plant that features stems or structures with internal cavities, allowing them to transport water and nutrients efficiently. This adaptation can help them survive in various environments, including wetlands and arid regions. Examples of hollow plants include certain species of bamboo and cattails. The hollow structure can also provide buoyancy, enabling some plants to float on water. Additionally, these plants may have specialized tissues that support their growth and stability. Hollow plants play a crucial role in their ecosystems, offering habitats for various organisms and contributing to nutrient cycling.