A certain group of plants that have spongy roots, which allow the exchange of gases to and from the atmosphere, are mangroves with pneumatophores.
Mangroves are shrubs or small trees that grow in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species.
I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.