unknown plant

I had some seeds which produced this plant 1foot high with 5 fingered leaves and odd shaped pink flowers.

 

Possibly Cleome hassleriana(spinosa), family Capparidaceae.

Plate from an old flora at
http://www.meemelink.com/prints pages/17790.Capparaceae - Cleome spinosa.htm

and from The Missouri Flora page
http://www.missouriplants.com/Pinkalt/Cleome_spinosa_page.html

and from the UW (University of Wisconsin) page where I found the two links above.
http://wisplants.uwsp.edu/scripts/detail.asp?SpCode=CLEHAS

Harry

 

Thank you wrygrass, that is it exactly.