Rudbeckia triloba
Similar in appearance to the common Black-eyed Susan.  Perennial and long flowering, with abundant flowers, adapted to partial shade.
 
Serves Bumblebees, little carpenter bees, digger bees, cuckoo bees, leaf-cutting bees, Andrenid bees, and Halictid bees. Andrena rudbeckiae, is a specialist pollinator, requiring the genus Rudbeckia.
 
Pollinator / Bloom Window:
Middle - Late