The black eyed susan is a long blooming perennial picqero (do you know how hard it is to NOT put a u after a q?)
A bit more detail, Rudbeckia hirta.
Common Names: black-eyed Susan, gloriosa daisy, yellow oxeye daisy
Family: Asteraceae/Compositae (aster/daisy Family) More information Here is a sunflower.
I had one in my yard that grew to 10 feet high.
It is also the state flower of Maryland (since 1918). In my opinion, if you use a large bunch, they look nice with some ferns in a vase.