Searching cultivars

Black Eyed Susan (Rudbeckia hirta 'Amarillo Gold')
Black Eyed Susan (Rudbeckia 'American Gold Rush')
Black Eyed Susan (Rudbeckia 'Anemones')
Black Eyed Susan (Rudbeckia hirta 'Aries')
Black-eyed Susan (Rudbeckia hirta 'Autumn Colors')
Black-Eyed Susan (Rudbeckia hirta 'Autumn Forest')
Black-eyed Susan (Rudbeckia hirta 'Becky Cinnamon Bicolor')
Black-eyed Susan (Rudbeckia hirta 'Becky Mix')
Black-eyed Susan (Rudbeckia hirta 'Becky Orange')
Black-eyed Susan (Rudbeckia hirta 'Becky Yellow')
Western Coneflower (Rudbeckia occidentalis 'Black Beauty')
Black Eyed Susan (Rudbeckia triloba 'Blackjack Gold')
Black-eyed Susan (Rudbeckia speciosa 'Viette's Little Suzy')
Black-eyed Susan (Rudbeckia hirta 'Cappuccino')
Black Eyed Susan (Rudbeckia hirta 'Caramel Mixed')
Black-eyed Susan (Rudbeckia hirta 'Cherokee Sunset')
Black-Eyed Susan (Rudbeckia hirta 'Cherry Brandy')
Gloriosa Daisy (Rudbeckia hirta 'Chim Chiminee')
Black-eyed Susan (Rudbeckia hirta 'Chocolate Orange')
Black-eyed Susan (Rudbeckia fulgida 'City Garden')
Black-eyed Susan (Rudbeckia hirta 'Cordoba')
Rudbeckia (Rudbeckia hirta 'Denver Daisy')
Black-eyed Susan (Rudbeckia fulgida 'Early Bird Gold')
Black Eyed Susan (Rudbeckia hirta Enchanted Cosmic Eye)
Black Eyed Susan (Rudbeckia hirta SmileyZ™ Giggling)
Cutleaf Coneflower (Rudbeckia laciniata 'Herbstsonne')
Black-Eyed Susan (Rudbeckia hirta 'TigerEye Gold')