| viola labradorica | | USA: District of Columbia; Smithsonian Gardens, National Museum of Natural History | | 1243026383 |
| viola labradorica | | USA: District of Columbia; Smithsonian Gardens, National Museum of Natural History | | 1243024249 |
| viola labradorica | | USA: District of Columbia; Smithsonian Gardens, National Museum of Natural History | | 1243024611 |