It has several common names. Angel's trumpet, Devil's trumpet. I know it as Datura. It is poisonous. Years ago kids ate it to get high and several died.

Poisonous.

Poison only if you eat it.
My sisters and I played with this plant when we were kids
We knew it was poisonous.

This is a brugmansia - flowers hang down. Wonderfully fragrant. Daturas have flowers that face upward.

Sorry! I always mix them up. I was told they were Daturas years ago.

Thank you for the info from all ( and so quickly too!)

I also found this post: http://forums.gardenweb.com/forums/load/brug/msg0902403024458.html
Which helped out but, at the same time, added to the confusion:
Brug. = Angel's Trumpet, point down, Bean like seed pod
Dat. = Devil's Trumpet, point up, Prickly round seed pod
The plant in the picture I showed you had the prickly round pods but the flowers are pointing down.

Would anyone care to elaborate?

Can you get a photo of the seeds? That is definitely a brug and they do have bean-like pods

Brug seed pods:
{{gwi:354515}}

Datura seed pods:
{{gwi:354516}}

Well, since the photo of the datura seed pod in the previous post doesn't show up, scroll down here for another photo of a datura seed pod:
http://www.floridata.com/ref/d/datura_i.cfm

Brugmansia used to be placed within Datura, with there being other plants that still are classified as Datura species even though the ones now in Brugmansia no longer are.

This post was edited by bboy on Fri, Oct 17, 14 at 20:51

Brug seed pods:

Mic13 @3.33pm oct 17 2014 (a long time ago) i had what i was told was datura volunteer in my garden (rented space in a public garden) and i loved it. it was as you say - flowers facing downward, but spiked- almost round seedpods that all burst open between one day and the next. (so i couldn't gather any seeds) ...bloomed in the evening. it was less bushy than the one in your picture; more upright, maybe 7' tall, herbaceous.

i'd love to find out what it really was.

That sounds like D. inoxia, Richard.

One would think of Brugamansia as a suitable hummingbird plant, but there is only one South American species with a beak and tongue long enough to reach the nectar.