From the Dutch botanists of FLORON:
Second navelwort find in the Netherlands
Press release by FLORON on Thursday, May 27, 2010
At the Stenen Hoofd (Stone Head) in Amsterdam, many special ferns grow. This botanical wealth has just increased by finding navelwort there. It is the second find of this species in the Netherlands.
The Stenen Hoofd in Amsterdam is well known. It is a small peninsula in the harbour, not far from the Central Station, with old basalt quays. These walls are very rich in ferns, and famous because of the large population of rustyback ferns. The discovery of navelwort (Umbilicus rupestris) at Stenen Hoofd is not only the second time in our country but also in our capital. In 2004 the plant was already reported on a city wall at the Amsterdam basalts Entrepotdok.
Vacationers who have visited the Mediterranean or the Atlantic coastal areas of the British Isles and France, might know this succulent plant, belonging to the Crassulaceae family.