Snmall crucifer growing commonly on mud slides at base of chalk cliffs.
No interactions present.
Not familiar with this, but when I looked it up I found it is also known as Stinkweed - great name, does it live up to it?
Oh yes! But you have to harrass it, first.
My Flickr photos...
Lat/Lng: 54.1037, -0.127
OS grid ref: TA225691