Popple/poplar has to be a close cousin to your quaking aspen. Then there's balm which could very well be a cottonwood cousin. Those get huge, much larger than popples with the older ones reaching 4ft across. Nobody up here calls anything aspen which might be because we don't have any?
I've seen big tooth aspen called birch because it was so white. I always just let it go when I hear it. I try to do the same when I see 'chord of wood' but not always successful. It's one of those "please correct me when I'm wrong" things that some people don't appreciate. aspens, cottonwoods and poplars are all part of the populus family and with the way different parts of the country use common names to identify trees it's not surprising there is a LOT of confusion when you share info across a diverse group of people. Then there's DNA sequencing and examination of same which has changed even scientific identities that have been written in stone given the tools of the time. Everything is so fluid it seems at times. There are, what, 50 or 60 gender pronouns now, based on not much more than pure fantasies.
