| Family | Primulaceae |
| Scientific name | Primula japonica A. Gray |
| Synonyms | none |
| Common name | (Japanese common name) ku-rin-sou (クリンソウ, 九輪草 [meaning: nine wheels weed]) |
| (English common name) Candelabra primrose, Japanese primrose | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku |
| (Other nations) none | |
| Habitat | Mountane swamp |
| Chromosomal number | 2n=44 |
| Description | Leaves 15-40cm long, 5-13cm wide. Scapes 40-80cm tall. Flowers red, pink or white 2-2.5cm, flowering in May to June. Perennial plants. |
| Reference | Primula japonica A. Gray |
| Note | Primula japonica A. Gray var. angustidens Franchet is a synonym of Primula stenodonta I. B. Balfour ex W. W. Smith & H. R. Fletcher in China. |
| Li, H. L. et al., Flora of Taiwan described Primula obconica Hance as Primula japonica A. Gray. |
| May 2006 at Yukiguni Botanical Garden |
April 2007 at Tsukuba Botanical Garden |
April 2007 at Tsukuba Botanical Garden |
| April 2008 at Kyoto Botanical Garden |
April 2008 at Kyoto Botanical Garden |
May 2006 at Yukiguni Botanical Garden |