You can always post the pictures on the net and post the link.

There are some books out about Houston-area and Texas gardening that should be a big help. You might check Half-Price Books as they usually have a lot of gardening books. There is a lot of crepe myrtle in this area as well as wax myrtle and oleander. You want to be careful of oleander as it is poisonous. There are also a lot of semitropical and tropical plants around, particularly hibiscus and bougainvillia.

Yes, you can post pictures on here. Most of us use photobucket.

If you have an older home them plants maybe just over grown and you can trim them back. Some maybe worth learning about so you don't get rid of them and find out later you wished you'd kept them.

It doesn't take long for a garden to get out of control.

Here is a link that might be useful: Instructions for posting pics, thumbnails and imbedded links - cottage garden forum - garden web

There are some excellent books, too that are great to have. They have native Texas plants by Howard Garrett and lots of pictures and descriptions to help ID all your plants.