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Found growing against wall in sidewalk cracks.
Also check..Many Purple flower in...http://en.wikipedia.org/wiki/Campanula
Brodiaea family has such purple flowers
May be in Ixioideae
Good guess, I think it's a Campanula too, but the Creeping Bellflowers hang from a central stalk. These are more all over the place on thin stems.
Lat: 41.23, Long: -122.27
Spotted on Jul 28, 2011 Submitted on Mar 12, 2012