Dracunculus.
David Ehrlich (Thu, 26 May 2011 11:25:59 PDT)

FYI --
You all know in many places, the sidewalk is set back from the curb leaving a
strip several feet wide which is usually planted.  Well, in Palo Alto, CA, I
passed a home where the owner had planted the strip with Dracunculus vulgaris. 
A very impressive purple swath!  I had my car window rolled up as I drove by, so
I don't know about the odor.

David E.