Although I live in a coastal town, it’s not exactly a seaside town, as the waterway immediately offshore is officially part of the Severn Estuary, which becomes the Bristol Channel just a mile or so downstream. However, the Severn Estuary is still home to at least 100 different species of seaweed and, during a recent walk, I found a couple of species I hadn’t noticed before.

This one is, I think, Knotted wrack (Ascophyllum nodosum). It certainly fits the description on the Marine Conservation Society website: ‘Knotted wrack has narrow, strap-like fronds with large single air bladders’, and looks like their photo. (The reason I sound hesitant is because I found a very similar photo on another website which was labelled Channel wrack).