Every so often, I spot a very unusual flower and grab a photo. Sometimes I can identify the flower almost immediately, but other times the identification eludes me entirely. This is one of those flowers. Try your luck, maybe you have this growing in your yard. How about sharing your knowledge?
Mystery solved: Through comments from my readers, the plant was identified as a red lupine (Lupinus polyphyllus). Thanks for all the comments (mostly on Google+).