| Family | Betulaceae | 
| Scientific name | Alnus trabeculosa Handel-Mazzetti | 
| Synonyms | none | 
| Common name | (Japanese common name) sakura-ba han-no-ki [sakura leaved hazel tree] | 
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Ibaraki Prefecture), Kyushu | 
| (Other nations) China | |
| Chromosomal number | unknown | 
| Description | Plants ca.10m. Flowers flowering in February to March. Deciduous. Subarbor trees. | 
| Reference | Alnus trabeculosa Hand.-Mazz | 
| Alnus trabeculosa Hand.-Mazz. | 
| February 2007 at Tsukuba Botanical Garden  | 
    
| February 2007 at Tsukuba Botanical Garden  | 
      January 2007 at Tsukuba Botanical Garden  | 
      January 2007 at Tsukuba Botanical Garden  | 
    
| January 2007 at Tsukuba Botanical Garden  | 
      January 2007 at Tsukuba Botanical Garden  | 
      January 2007 at Tsukuba Botanical Garden  | 
    
| May 2008 at Tsukuba Botanical Garden  | 
      May 2008 at Tsukuba Botanical Garden  | 
      May 2008 at Tsukuba Botanical Garden  |