Need I.D. please of butterfly nectar plant

I know this is going to be difficult but maybe you can at least put me on the right track. My cousin in San Antonio sent me this photo saying that I just HAVE to get the plant with the little purple flowers. She & her hubby saw it at the nursery & bought it because of all the butterflies on them. She can't remember the name of it so they have dubbed it the "butterfly heroin" bush. She says it's always loaded with butterflies. It is the one in the pot with the purple trumpet shaped flowers with the tiny white ?throat?.
Any one have a clue?

Thanks,
Ann in Fl.

Can you get her to take a close-up of the flower and leaves?

Kind of looks like angelonia
http://davesgarden.com/guides/pf/go/38284/

I don't know the name but see it for sale at HD and Lowe's in the annuals.
C

Lowe's here usually has Angelonia in a variety of colors. The ones I had survived for a couple of years with light frost but the hard freezes last year wiped them out.

Boy! You guys have GOOD eyes! I do believe you hit the nail on the head. It sure looks like Angelonia to me.
Thank you ALL so very. very much.

Ann

Good call AJ !!!

If she's talking about the one in the pot in the fron with the lighter green leavest, that's West Texas mist flower.

No, she said the one in the pot, I was thinking the same thing til I reread her post.
C

Okay, just covering all the bases because that plant IS a butterfly magnet!

Indeed but mine bloom pretty late in the year.
C

She said the the one in the pot with the purple trumpet flowers.
Yes, I would have thought the mistflower too.

Yes, my cousin did say in her email that it was IN the pot BUT she goofed. Stephanie's comment about the West Texas Mist flower got me to looking. I sent the info. to my cousin--I thought we had it. But---at least that was enough to jog her memory. Mystery solved. It is in fact a Eupatorium greggii a.k.a. Greg's blue mist flower. So Stephanie was on the right track. Actually many of you were---it's just that we all thought the plant was IN the pot.
Well folks, this has been quite interesting and I sincerely thank you all for your endeavors in solving the mystery. Now I know what I should look for. I certainly hope it will take our humidity here in southern coastal Fl.
Yall drop on over to the Florida forum sometime & say Hi.

Thanks again,
Ann

Zephyranthes "Libra"

LOL well it is a butterfly magnet.
C

I was just covering all the bases. LOL