What Is This?

What Is This?

I looked through the Louisiana native plant list and didn't see this one. So I am asking for help in identifying these little flowers. I live in Kenner, LA right outside of New Orleans and these are growing up my fence with lots of tendrils and seed pods. Thanks in advance for the help!
Purple Flowers with Pods
Purple Flowers with Pods
Welcome to Alyssa’s room

Welcome to Alyssa’s room

lemon verbena help!

lemon verbena help!

pillows.

pillows.

my how your garden has grown!

my how your garden has grown!

My room :)

My room :)

State of the Garden, Month of April, 2010

State of the Garden, Month of April, 2010