"Emrys Davies" wrote in message
...
It is growing in front of a disused garage door on a car
park. It is in in full bloom and is quite striking. I
have never seen it before during my long lifetime.

It is about 1' x 1' and is literally covered in rich
yellow trumpet like flowers which are about half an inch
long. There are about twelve flowers in a cluster at the
end of each stem and the foliage is similar to this
http://www.google.co.uk/imgres?imgur...d=0CI0BEPwdMAo.

A maidenhair fern it ain't - they have sort of triangular
leaves like a ginkgo, and very thin black stems.

If your plant has pinkish, fleshy stems, and little yellow
flowers, it's no doubt a Corydalis luteo, a relative of
Bleeding Heart, (Dicentris spectabilis), and fumitory
(Fumaria officionalis). They're all family Papaveraceae.

HTH,

someone