What types of thorn trees grow in Texas?

Question

So far, we have:

Acacia

Mesquite

Honey Locust

Can you add more?

Answer 1

American Holly

La Coma

Hawthorn

Texas  Ebony

Retama

Bougainvillea

Natal Plum

Answer 2

Jerusalem Thorn or Parkinsonia

Citrus, like orange or grapefruit

Ummm how many of what the top poster listed were trees?... They can be trained to look like trees, some of them anyway.

Answer 3

Also, roses.

(The top poster had most of them listed.)