Translated from the Dutch FLORON botanists today:
Large-leaved nettle (Urtica membranacea) is a plant with a Mediterranean-Atlantic distribution. Originally it lived across the Mediterranean and in the coastal areas of the Atlantic Ocean from Portugal to Brittany. In 2011 the first case of it growing in the wild was discovered in Belgium. In 2014 this was followed by the Netherlands, with discoveries in Venray and Amsterdam. And this year there are observations at new locations in Amsterdam and Texel.