In the wild, the plant is permanently submerged and grows in both still and moving waters and sunny and partial shady situations.

The effects are more pronounced above the tidal zone than where the concrete is permanently submerged.

The late Roman Karamagara Bridge, a notable example of an early pointed arch bridge, has been permanently submerged by the dam.

Unless expensive sea defences were built, low-lying coastal regions would be permanently submerged.

Water level is maintained with the steam drums approximately half-full, so the tubes operate in the "drowned" state with their upper ends permanently submerged.

The land where the bait house of the pier once stood, is now permanently submerged.

"One of the most important requirements, it emerged, was to position the sandbags so as to keep the body permanently submerged."

A notation right here says 'symptoms permanently submerged, have seldom seen a child so hollow-eyed and (bleeped) up, skin and bone.'

In coastal environments the littoral zone extends from the high water mark, which is rarely inundated, to shoreline areas that are permanently submerged.

Since the completion of the Three Gorges Dam, the site is permanently submerged.