| Number seen/Abundance | Date | Location | Comments | Recorded by |
|---|---|---|---|---|
| A single plant | 2011-02-02 | Llanidan Shore of the Menai Strait south of Brynsiencyn |
On the lower shore attached to a cobble (tide = 1.2m acd) | Paul Brazier |
| 12+ | 22/09/2011 | Porthkerris, Cornwall Broken shingle seabed, on the inside of Drawna rocks, at approximately 6 metres depth. |
Broken shingle seabed, at approximately 6 metres depth. | Jim Weir |