St Patrick's Cabbage

Tellima grandiflora, this one had me going, even Fitter and Fitter only had a squiffy little line drawing, but the joy of trawling the internet finally found me the answer - although I confess I have not the slightest about what St. Patrick had to do with it.  I first saw it growing in a hedgerow a couple of years ago and next year when it grows again I won't be left wondering what is this odd plant. click on the image for a bit more detail.