Mona, I don't know the names of any of these. Bought them at one
of the box stores, and the tag said Crape Myrtle, pink, red, or whatever.
All of these grow very tall, whether they are shrub or tree form. I personally
like to see the trunks as I think they are quite attractive with the peeling bark.
Some of the shrubs respond well with trimming or suckering, and others not so much.
I haven't seen any around that have been cut with flat tops.