No interactions present.
I have removed my agreement from Bladder wrack - placed erroneously a while ago.
I have agreed to Spiral wrack (shifted Likelihood) but it is not clear cut. I have agreed though because of the twisting nature of the frond and the Receptacles are far more like Spiralis.
Beware though, in future, they do co-habit so ID's get mixed up visually; they also hybridize.
I am told, I read somewhere, that the rims on the Receptacles suggest hydridization - but I cannot find references.
Lat/Lng: 52.1366, -10.0523