Wavy Bittercress (Cardamine flexuosa)
Introduction
The photograph on this page of Wavy Bittercress (Cardamine flexuosa) by Anne Burgess as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Anne Burgess Taken: 17 Apr 2015
A rather fine specimen of something I would not be too keen to see in the garden! I am not fully confident of the species and would be happy to be corrected by someone more expert.