| crataegus heldreichii | | USA: Massachusetts, Suffolk Co., Arnold Arboretum | | 511447105 |
| crataegus heldreichii | | USA: Massachusetts, Suffolk Co., Arnold Arboretum | | 453041663 |
| crataegus heldreichii | | USA: Massachusetts, Suffolk Co., Arnold Arboretum | | 453041268 |
| crataegus heldreichii | | USA: Massachusetts, Suffolk Co., Arnold Arboretum | | 453040903 |