Leaves of Senna racemosa don't match.. but still have to find var. racemosa. There isn't a S. racemosa var. racemosa in the updated Flora brasilense so we should only be looking at updated records and not original names which some might be.
http://quod.lib.umich.edu/h/he...
Senna neglecta is on FloraSBS, leaves don't match..
http://sites.google.com/site/f...
I found a photo of Senna angulata leaves! They don't match either!
http://www.ars-grin.gov/cgi-bi...
On the GRIN link..
http://www.ars-grin.gov/cgi-bi...
It's still looking good for Senna var. miscadena