| Family | Violaceae |
| Subfamily | Violoideae |
| Tribe | Violeae |
| Scientific name | Viola crassa Makino |
| Synonyms | none |
| Common name | (Japanese common name) takane-sumire (タカネスミレ, 高嶺菫 [meaning: high mountain viola]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Mt. Iwate, Mt. Komagatake, Mt. Yakushu) |
| (Other nations) Russia (Kuril Islands, Kamchatka, Sakhalin), Korea, China (Xizang) | |
| Habitat | Alpine rocks |
| Chromosomal number | 2n=48 |
| Description | Plants ca. 5-10cm tall. Leaves 2-4cm wide. Flowers yellow ca. 2cm across, flowering in June to July. Perennial plants. |
| Reference | Viola crassa Makino |
| Viola crassa Makino | |
| Note | Rare species. |
| April 2010 at my home |
April 2010 at my home |
April 2010 at my home |
| April 2010 at my home |
| April 2010 at my home |