I haven't been to the Bellagio to see this year's Christmas display, but I've seen enough of them to feel like I know what to expect. Here are some photos from years past.
Poinsettias.
This was the 2007 tree.
The small flowers are a variant of poinsettias. They remind me of those little Cairn Terriers.
Last year they had the penguins.
This is the 2010 tree.