If you know your trees, you may recognize this as a Chinese tallow (Triadica sebifera) which is an invasive species not only here in Texas, but everywhere in America. It takes over forest habitats at an amazing rate, and is growing common in Dallas. It is at the top of the list of trees that the City of Dallas calls “non-protected” – which means you can cut them down without permit. It also means you should NOT plant this species. Because no matter how well they grow – well, that is the problem. They grow so well they out-compete other trees, and crowd them out. But they do have pretty leaves in the fall.
If you would like to know more about how and why leaves change color in the fall – well, have a look back at the entry from 21 September 2013. It discusses exactly these questions!