| Family | Violaceae |
| Scientific name | Viola grayi Franchet & Savatier |
| Synonyms | Viola senamiensis Nakai |
| Common name | (Japanese common name) iso-sumire [seashore viola] |
| (English common name) Gray's viola | |
| Distribution | (Japan) Hokkaido (southwestern region), Honshu (coastal region of Japan Sea side) |
| (Other nations) none | |
| Chromosomal number | 2n=20 |
| Description | Plants 20-40cm. Leaves 4cm width. Flowers red purple or pale purple 2-2.5cm, flowering in April to May. Perennial plants. |
| Reference | Viola grayi Franch. & Sav. |
| April 2007 at Senami Bay in Niigata Prefecture |
April 2007 at Senami Bay in Niigata Prefecture |
April 2007 at Senami Bay in Niigata Prefecture |
| April 2007 at Senami Bay in Niigata Prefecture |
April 2007 at Senami Bay in Niigata Prefecture |
April 2007 at Senami Bay in Niigata Prefecture |
| April 2007 at Senami Bay in Niigata Prefecture |
April 2007 at Senami Bay in Niigata Prefecture |
April 2007 at Senami Bay in Niigata Prefecture |