| Family | Violaceae |
| Subfamily | Violoideae |
| Tribe | Violeae |
| Scientific name | Viola utchinensis Koidzumi |
| Synonyms | none |
| Common name | (Japanese common name) okinawa-sumire (オキナワスミレ, 沖縄菫 [meaning: Okinawa viola]) |
| (English common name) none | |
| Distribution | (Japan) Okinawa |
| (Other nations) none | |
| Habitat | Seaside limestome rocks |
| Chromosomal number | unknown |
| Description | Plants ca. 10-20cm tall. Flowers pale blue or white, flowering mainly in February to March. Evergreen. Perennial plants. |
| Reference | Viola utchinensis Koidz. |
| Viola utchinensis Koidz. | |
| Note | Endemic to Japan. Rare species. |
| October 2009 at Shinjuku Gyoen National Garden |
October 2009 at Shinjuku Gyoen National Garden |
October 2009 at Shinjuku Gyoen National Garden |
| October 2009 at Shinjuku Gyoen National Garden |