| Family | Betulaceae |
| Scientific name | Alnus serrulatoides Callier |
| Synonyms | none |
| Common name | (Japanese common name) kawara han-no-ki [riverbed hazel tree] |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Tokai region), Shikoku, Kyushu (Miyazaki Prefecture) |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants ca.5m. Leaves 5-10cm length. Flowers flowering in February to March. Deciduous. Subarbor trees. |
| January 2007 at Tsukuba Botanical Garden |
January 2007 at Tsukuba Botanical Garden |
January 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 |