Stewart Robert Hinsley wrote:
This was seen growing, apparently spontaneously, at the edge of a
garden access road. My best guess is sneezewort (Achillea ptarmica),
but it doesn't seem quite right - the habit is too compact, and the
leaves too short. Any other offers.

http://www.stewart.hinsley.me.uk/Images/Compos06.jpg

The other leaves in the photograph are Solanum nigrum.

Is your specimen aromatic? We had something in West Wales which I was
/sure/ was sneezewort, but it was lightly and pleasantly aromatic; but
since the Collins Field Guide explicitly said it was "not aromatic", in
Italics, I assume this is a diagnostic character, which implies a
similar species I don't know about. But I'm wondering if there may be
more varieties or forms of A. ptarmica than are recognised (at least by
the Guide: I haven't anything more advanced).

--
Mike.