Mystery flower

[beesmyer]

Can anyone please help identify this? We had this appear in our bed here in Utah where we didn't plant anything. Now my wife would like to plant them. Thank you very much.

All photos can be seen here. http://www.flickr.com/photos/27725102@N06/sets/72157607286255248/

[Gardengallivant]

This looks like the asymmetric flowers of lobelia. There is one common species sold in nurseries, trailing Lobelia erinus, originally native to California that might what you found be but there are many species.
http://www.calflora.org/cgi-bin/species ... ecnum=8515
Dunn's lobelia is another native