| Family | Solanaceae |
| Scientific name | Solanum megacarpum Koidzumi |
| Synonyms | none |
| Common name | (Japanese common name) oh-maruba-no-horoshi [large round leaved horoshi (horoshi = a kind of skin disease)] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu (north of Central region) |
| (Other nations) Russia (Far East) | |
| Chromosomal number | unknown |
| Description | Leaves 4-9cm long, 2-4cm wide. Flowers purple, flowering in July to September. Vine. Perennial plants. |
| August 2006 at Sugahira swamp |
August 2006 at Sugahira swamp |
August 2006 at Sugahira swamp |
| August 2006 at Sugahira swamp |
August 2006 at Sugahira swamp |
August 2006 at Sugahira swamp |