Could possibly be Maidens hair fern ?

or asparagus fern it was popular in the 50's i think

I think Pamg is right, I believe its asparagus fern.

it is still used for bouquets and buttonholes if you want it. asparagus fern :o)

it would be more like Asparagus fern , my mum had some in her bouquet.She married in 1959
It is a fine feathery fern

It actually isn't a fern being part of the asparagus family but I too had it in my wedding posy.