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from Thes contains these words:

I've been asked to identify a flower by my mother, and I can tell it's a
daffodil (I have a picture, but nowhere to put it - or the know-how).
It's a double-flowered variety with a white cup, but the unusual thing
is that the inner ruffly petals are a mix of white and green.

Could be n. poeticus florepleno, which is a very old variety..late
flowering and scented.

Can't find my daffodil and bulb books. A house without bookshelves is
a house with many frustrations, as Pete didn't say :-(

Janet