| callirhoe involucrata | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243025929 |
| callirhoe involucrata | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243024921 |
| callirhoe involucrata | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243024145 |
| callirhoe involucrata | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243023552 |