| Family | Oleaceae |
| Tribe | Oleeae |
| Scientific name | Syringa reticulata (Blume) H. Hara |
| Synonyms | Syringa reticulata (Blume) H. Hara subsp. reticulata; Ligustrum amurense Carrière var. japonica Maximovicz; Syringa amurensis Ruprecht var. japonica (Maximovicz) Franchet & Savatier; Syringa japonica (Maximovicz) Decaisne |
| Common name | (Japanese common name) hashidoi (ハシドイ [meaning of hashidoi is unknown]) |
| (English common name) Japanese tree lilac | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) none | |
| Chromosomal number | 2n=46 |
| Description | Plants 4-8m tall. Leaves 4-7cm long. Flowers white corollas 5mm, flowering in November to December. Fruits black. Evergreen. Subarbor trees. |
| Reference | Syringa reticulata (Blume) H. Hara |
| Syringa reticulata (Blume) H. Hara | |
| Hair dyeing by iridoid glycosides and aglycons thereof (US Patent 5078750/1992) | |
| Hair or skin treating agent containing an extract of an Oleaceae family plant (WIPO WO/2007/000214) | |
| Note | Endemic to Japan. |
| May 2007 at Koishikawa Botanical Garden |
May 2007 at Koishikawa Botanical Garden |
May 2007 at Koishikawa Botanical Garden |
| May 2007 at Koishikawa Botanical Garden |
May 2007 at Koishikawa Botanical Garden |