Does anyone know the tree that is nick named the mother in law tree, it is big with thorns its not a mesquite?

Answer 1

It might be the wild tamarind tree ... http://www.coralsprings.org/environment/TreeGuide2006.pdf. Supposedly it's called that because the "large dry seed pods never stop talking 'rattling'". See page 24 of that guide for a picture.

Answer 2

The Wild Tamarind is often called
“Mother-in-Law Tree” in South Florida
because the large, dry seed pods present
during winter never stop talking
(rattling). It is a soothing sound during
high winds resembling the sounds of a
driving rain.

Answer 3

BIG AND WITH THORNS. MOTHER-IN -LAW ! THEY NEVER GET A BREAK RIGHT ?