| Family | Violaceae |
| Scientific Name | Viola verecunda A Gray f. violascens Hiyama ex Maekawa |
| Synonyms | Viola verecunda A Gray var. vercunda f. violascens |
| Common Name | (Japanese Common Name) Murasaki-koma-no-tume [Purple nail of horse] |
| (English Common Name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other Nations) Korea, China, Russia(Sakhalin) | |
| Chromosomal number | 2n=24 |
| Description |
| April 2006 at Tsukuba Botanical Garden |
April 2006 at Tsukuba Botanical Garden |
April 2006 at Tsukuba Botanical Garden |