Larkspur?

3/18/2012
I found a flowering weed growing in the neighbor's unkept yard. It's a vacant house so it's not taken care of regularly. This one was rather pretty, with a 2 foot talk stalk with bright purple flowers all over it. The leaves are strange as well, almost needle like and bushy.
3/20/2012
A visit to the library like so many other posts...
The Audubon Society Field Guide to North American Wildflowers Eastern Region
possibility:
Spring Larkspur (734)
Delphinium tricorne
YES. Solved. Well if it's incorrect it's at least in the same family and I'll find it soon.
Rocket Larkspur (Consolida ajacis)