| Family | Caprifoliaceae |
| Scientific name | Lonicera maackii (Ruprecht) Maximovicz |
| Synonyms | Caprifolium maackii (Ruprecht) Kuntze; Lonicera maackii (Ruprecht) Herder; Lonicera maackii (Ruprecht) Maximovicz var. japonica Nakai; Lonicera maackii (Ruprecht) Maximovicz var. typica Nakai; Xylosteum maackii Ruprecht |
| Common name | (Japanese common name) hana-hyotan-boku (ハナヒョウタンボク, 花瓢箪木 [meaning: flowering hyotan tree (hyotan = Lagenaria siceraria var. gourda)]) |
| (English common name) Amur bush honeysuckle, Amur honeysuckle | |
| Distribution | (Japan) Hokkaido, Honshu (Aomori Prefecture, Iwate Prefecture, Gunma Prefecture, Nagano Prefecture) |
| (Other nations) Russia, Korea, China, Mongolia | |
| Habitat | Mountane forest, forest edge |
| Chromosomal number | 2n=18 |
| Description | Plants 2-6m tall. Leaves 5-9cm long. Flowers white corollas ca. 2cm, flowering in May to June. Deciduous. Shrub. |
| Reference | Lonicera maackii (Rupr.) Maxim. |
| Lonicera maackii (Rupr.) Maxim. | |
| Lonicera maackii (Rupr.) Herder | |
| Karyotype analysis of Lonicera japonica and L. maackii | |
| Note | Poisonous plants. |
| Rare species. |
| June 2009 at Karuizawa Botanical Garden |
June 2009 at Karuizawa Botanical Garden |
June 2009 at Karuizawa Botanical Garden |
| June 2009 at Karuizawa Botanical Garden |