Common name: Weeping Cherry Tree 'Pendula'
Plant Link: http://plantsdatabase.com/go/55696/
What a graceful, lovely tree! Thank you for posting pic post-bloom - most people (& nurseries) post trees while in bloom, but it is just as important to see what it looks like after blooming especially when considering adding to garden (which I am.)
I see this picture was taken in 2003... do you have more recent pix? I'd love to see how it has progressed.
Thanks again, Linda