I took the picture in order to test Google's tool for identifying the subject of photos. The tool flunked, unable to connect the picture, which looks pretty clear to me, with the name of the plant. Fortunately Erudite Partner got interested in the experiment and used her excellent Google-fu to figure out this was an Angel's Trumpet, scientifically, Brugmansia.
And from that Wikipedia entry, we learned:
The next morning as we were coming out of the house, as often happens, passersby were looking into the yard.
A regular Mission homey asked: "What's that plant? I feel like it wants me to sniff it or something."
E.P.: "Probably shouldn't do that. It's called Angel's Trumpet and it's poisonous."
"Even to smell it?"
"They say 'yes.'"
"Okay, now I know ..."
I can't decide whether I feel I should be responsible for knowing the toxicity of what's in my yard or not. These plants are quite common around here.