| ratibida columnifera | | USA: District of Columbia; Bartholdi Park located behind the U.S. Botanic Garden, 100 Maryland Ave. | | 1243026435 |
| ratibida columnifera | | USA: District of Columbia; Bartholdi Park located behind the U.S. Botanic Garden, 100 Maryland Ave. | | 1243025291 |
| ratibida columnifera | | USA: District of Columbia; Bartholdi Park located behind the U.S. Botanic Garden, 100 Maryland Ave. | | 1243024007 |
| ratibida columnifera | | USA: District of Columbia; Bartholdi Park located behind the U.S. Botanic Garden, 100 Maryland Ave. | | 1243023164 |