Linked from
The 11 pages that link to Aerenchyma, each with the reason it gives.
Aquatic plantRelated: Its air channels carry oxygen to submerged roots and stems.
NymphaeaRelated: Air-filled tissues help water lilies move oxygen to submerged organs.
Nelumbo nuciferaRelated: Air channels help supply submerged organs with oxygen.
AcorusRelated: Air-filled tissues help wetland plants such as Acorus function in oxygen-poor soils.
Pontederia crassipesRelated: Air-filled tissues contribute to the plant’s ability to float.