What is this tree at UBC Botanical Gardens?

I took a photo of this tree at the gardens but can't remember the name. Can you help me?

 

Looks like Cercidiphyllum japonicum 'Morioka Weeping' in this shot. That one is told from other weeping Katsura trees by having a tall, height-building habit. It was grown and sold as C. magnificum 'Pendulum' until it was pointed out that naming was not apt.

 

Thank you so much, Ron. Cheers, Jackie