In message , someone
writes

"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.
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Looks too fleshy for those, more like a flowering sedum or Echeveria.
Does it have white sap? Then, maybe, an Asclepia.

I agree that it looks too fleshy for the usual run of Linaria and
Antirrhinum (Linaria alpina looked the closest match, but even that's
not fleshy enough, and the flower colour is different), but the flowers
are wrong for Sedum, Echeveria and Ascelepias, all of which have
actinomorphic flowers.

--
Stewart Robert Hinsley