| ceanothus americanus | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243026275 |
| ceanothus americanus | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243025425 |
| ceanothus americanus | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243023966 |
| ceanothus americanus | | USA: District of Columbia; United States Botanic Garden, outdoor collections, 100 Maryland Ave SW. | | 1243023030 |