I live in North Central Florida and believe these are probably native trees as they are part of the forest I live in.

The first one is a very fast grower. This tree reaches about 12-14 feet tall now. It wasn't here 7 years ago when that power pole was put in.




The second photo is closer of the trunk.

This tree is deciduous, just now starting to lose it's leaves for winter.

The next one is also just less than 7 years old. Certainly a slower grower. This one is about 7-8 feet tall. It has one main tall skinny trunk in the middle and the branches grow out almost horizontal to the trunk. If I recall, it does not lose it's leaves for winter.

A birch and an oak. I can't easily say which variety in either case, though.

The leaves suggest a Prunus species on the first one. Branching structure is also Prunus like and not birch like. Agreed about the oak. I wouldn't be able to put a name to either, even with better pics, as I am not familiar with species that far south.

Thanks Rick. I think you're right on the Prunus.

Thanks guys, this gives me something to start with. I have a list of trees native to North Florida I got from the Extension Office......but no pictures. With the botanical name, I can now start to go through the list and look for pictures.

Just happened across this:
The thread "Opinions on Water Oak? (Quercus Nigra)" in Trees and Shrubs forum

It may be your mystery oak.(?)