| Family | Rhamnaceae |
| Scientific name | Rhamnus japonica Maximovicz var. microphylla H. Hara |
| Synonyms | none |
| Common name | (Japanese common name) kuro-ume-modoki (コバノクロウメモドキ, 小葉黒梅擬 [meaning: small leaved black ume-modoki (ume-modoki = Ilex serrata Thunberg ex Murray)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Tokai region), Kyushu |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants ca. 2-4m tall. Leaves ca. 2-5cm long. Flowers pale yellow corollas ca. 4mm across, flowering in April to May. Deciduous. Shrub. |
| Reference | Rhamnus japonica Maxim. |
| April 2008 at Kyoto Botanical Garden |
April 2008 at Kyoto Botanical Garden |
April 2008 at Kyoto Botanical Garden |
| April 2008 at Kyoto Botanical Garden |