| Family | Violaceae |
| Scientific name | Viola keiskei Miquel |
| Synonyms | Viola hirta forma keiskei (Miquel) Makino; Viola keiskei Miquel forma barbata Hiyama ex F. Maekawa; Viola keiskei Miquel forma glaberrima Becker; Viola keiskei forma okuboi (Makino) F. Maekawa ex H. Hara; Viola keiskei Miquel forma okuboi (Makino) T. B.Lee; Viola keiskei Miquel var. glabra Becker; Viola keiskei var. okuboi Makino; Viola keiskei Miquel var. typica Becker; Viola keiskei Miquel var. typica Makino; Viola okuboi (Makino) Makino; Viola okuboi (Makino) Makino var. glabra Makino |
| Common name | (Japanese common name) maruba sumire [round leaved viola], ke-maruba sumire [hairy round leaved viola] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Korea | |
| Chromosomal number | n=12, 2n=24 |
| Description | Plants 5-10cm. Leaves 2-4cm length. Flowers white (or sometimes pale pink) 2cm, flowering in March to May. Perennial plants. |
| Reference | Viola keiskei Miq. |
| Note | Viola keiskei Miquel forma barbata Hiyama ex F. Maekawa is a common from of Viola keiskei Miquel which is hairy inside side petals. |
| May 2007 at mountane forest |
May 2007 at mountane forest |
| March 2007 at Ushiku Forest Park |
March 2007 at Ushiku Forest Park |
March 2007 at Ushiku Forest Park |
| April 2007 at Akagi Natural Park |
April 2007 at Akagi Natural Park |
April 2007 at Akagi Natural Park |
| April 2007 at Akagi Natural Park |
April 2007 at Akagi Natural Park |