This 8 September 2018 photo comes now in this a P.S. to my earlier blog post on the desert islands Engelsmanplaat and Het Rif.
On the low sand dunes of Het Rif, a few plant species grow. One of them is prickly saltwort, depicted on the photo.
This is a rare species, on the Red List in the Netherlands.
A great skua flying that day at Het Rif.