"Stewart Robert Hinsley" wrote in message
...
I came across this growing in a crack in a pavement. I assume it's an
escape from some garden, but I don't recognise it.

http://www.stewart.hinsley.me.uk/Images/Dicot24.jpg
http://www.stewart.hinsley.me.uk/Images/Dicot25.jpg

Looks as it might be something in the old Scrophulariaceae, perhaps in the
region of Linaria or Antirrhinum.
--
Looks too fleshy for those, more like a flowering sedum or Echeveria.
Does it have white sap? Then, maybe, an Asclepia.

someone