Spiranthes lucida, shining lady’s tresses, is a North American orchid, never seen in Europe.
At least not until June this year, in a nature reserve near the Lek river in the Netherlands.
27 Spiranthes lucida orchids were discovered there, twelve of them flowering.
How did these flowers get here? This orchid species is not sold in commercial plant trade. So, not feral. Seeds brought here accidentally with trade in other products? Brought here by a migratory bird?