set with outline rudbeckia hirta or black-eyed susan flower bunch, ornate leaf and bud in black on white back.

betty black bloom blossom book botanical botany bud bunch coloring contour daisy design drawing drawn eye eyed flora floral flower foliage garden gloriosa graphic hand herb hirta illustration isolated leaf linear lines medicinal nature open ornamental ornate outline page petal plant rudbeckia set stem summer susan vector white