taxonomy of a moon plant

I got this plant a few days ago and was told it was a moon plant but havnt found anything on that plant the lady i got it from was getting rid of it because she said it was poisonous and didn't want her dog getting in it
sorry for the bad quality pictures all i had at the time was my cell phone

The stems and black or dark purple

I got a bunch of seeds from it
sorry if i posted this in the wrong place

 

It's a Datura. From the earth, not the moon (no known plants there at all!). And yes, it is poisonous if eaten.

 

Looks like Datura metel.

http://images.google.co.uk/images?h...datura metel purple&um=1&ie=UTF-8&sa=N&tab=wi

http://toptropicals.com/pics/garden/c13/8956.jpg

 

Yes, a Datura. Other types have large single white flowers and have the common name "moon flower" as do a few other plants.

 

thank you very much for your time i'm pretty sure that is what it is