wrote in message
...
Can somebody suggest an ID for this dainty species of (presumably)
Solanum?

http://www.box.net/shared/static/44y1d6r8qe.jpg

It came from a packet of seeds of geographically unspecifed "flowers
of the meadow".

Yes, it's Solanaceae, but not a _Solanum_.
Looks like it may well be _Nicandra physalodes_:

http://images.google.com/images?as_q=nicandra

It will eventually become a much larger, rather coarser
plant than your dainty youngster. The fruits are
interesting. It wouldn't seem an obvious choice for
a "meadow wildflower".

cheers