| Family | Ranunculaceae |
| Subfamily | Isopyroideae |
| Tribe | Isopyreae |
| Subtribe | Thalictrinae |
| Scientific name | Thalictrum minus L. var. kemense L. |
| Synonyms | Thalictrum kemense Fries; Thalictrum kemense var. stipellatum C. A. Meyer ex Maximowicz; Thalictrum minus subsp. kemense (Fries) Cajander; Thalictrum minus subsp. kemense (Fries) Hultén; Thalictrum minus var. stipellatum (C. A. Meyer ex Maximowicz) Tamura |
| Common name | (Japanese common name) ko-karamatu (コカラマツ, 小落葉松 [meaning: small meadow-rue weed]), oh-karamatu (オオカラマツ, 大落葉松 [meaning: large meadow-rue weed]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku |
| (Other nations) Russia, Korea, China, Europa, USA (Alaska) | |
| Chromosomal number | 2n=42 |
| Description | Plants 30-100cm tall. Leaves leaflets 1-3cm long. Flowers pale purple ca. 1cm, flowering in July to August. Perennial plants. |
| Reference | Thalictrum minus Linnaeus |
| Thalictrum minus Linnaeus | |
| Note | Many auhtors have described that Thalictrum minus L. var. kemense L. is a synonym of Thalictrum minus L. var. minus. |
| May 2008 at Hokkaido University Botanical Garden |
May 2008 at Hokkaido University Botanical Garden |
May 2008 at Hokkaido University Botanical Garden |