I hope this works, I am new at this. Does anyone know what kind of plant this is. I had a cutting from a park and it is growing like crazy. The leaves on it close at night. Thanks for any help.
Or if a woody shrub, Senna bicapsularis [of Hort.]( Senna pendula var. glabrata). http://davesgarden.com/guides/pf/showimage/62449/