"gregpresley" wrote in message ...
As another option, how about campanula trachelium - here's one pic - the
leaves do look more similar to your picture than rampunculoides
http://www.floracyberia.net/spermato...edoneae/campan
ulaceae/campanula_trachelium.html

I think that may be it! C. trachelium is a much better match. I see
that the common name is "nettle-leaved bellflower," and the leaves of
our plant do look rather like a nettle. The flowering habit seems to
match, too. Must be a garden escapee, I suppose.

If it isn't C. trachelium it must be something closely related.

Thanks for your help.

Nick