What - you've never heard of it? I have to admit that we didn't know what it was, so we looked it up and came to the conclusion that this is what it is. I've never heard of it myself, but it's a very pretty tree and is growing near here. The Collins book of trees describes it as 'a North American plant of doubtful origin grown widely in parks and gardens.'
I took a pic of a tree like this yesterday but hadn't a clue what it was. Lovely shot Judith and nice to know what it is but I bet I forget the name as it is a bit of a weird name!
If you have time it looks much better viewed large!