Help Me Identify This Plant That Made My Dog High

My dog got into this plant, and I think it made her high.

I did some yard work yesterday when I got home, and part of that was removing this plant that was growing through my Gardenia bush.

I pulled the plant off of the Gardenia and threw it onto the deck (was going to pick it up when I was finished.

Well, when I turned around, I noticed that Mannie had been all up in that plant.  I don't know how long she was on it, could have been as long as 15 minutes, but look at her:

She looks stoned, doesn't she?  I mean, I saw that movie "Dude, Where's My Car?" and most of the Cheech and Chong movies, and THIS IS THAT LOOK!

Do I need to buy her some pizza and Funyons?