unfamiliar seaweed

unfamiliar seaweed

Observation - unfamiliar seaweed - UK and Ireland. Description: Another from Easter weekend at Skeggy,often far up beach and dead looking. Didn't know if it was dead bits washed up or was actually growing there and surviving via rehydration at each high tide ?

Another from Easter weekend at Skeggy,often far up beach and dead looking. Didn't know if it was dead bits washed up or was actually growing there and surviving via rehydration at each high tide ?