| Family | Campanulaceae |
| Subfamily | Campanuloideae |
| Scientific name | Asyneuma japonicum (Miquel) Briquet |
| Synonyms | Campanula japonica (Miquel) Vatke; Phyteuma japonicum Miquel |
| Common name | (Japanese common name) shide-shajin (シデシャジン, 四手沙参 [meaning: shide = a traditional ornamental accessory, shajin = Japanese pronunciation of old Chinese common name of Adenophora triphylla var. japonica)]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Kyushu |
| (Other nations) Russia (Far East), Korea, China | |
| Habitat | Mountane forest |
| Chromosomal number | unknown |
| Description | Plants electing 50-100cm tall. Leaves 5-10cm long. Flowers pedicels 1-3mm long, calyx lobes 4-6mm long, blue corollas ca. 10-15mm long and 1-2mm wide, 5 stamens, styles 1-1.2cm long, flowering in July to August. Fruits 5-6mm long. Perennial plants. |
| Reference | Asyneuma japonicum (Miq.) Briq. |
| August 2008 at Nikko Botanical Garden |
August 2008 at Nikko Botanical Garden |
August 2008 at Nikko Botanical Garden |