| Family | Liliaceae |
| Subfamily | Lilioideae |
| Tribe | Lilieae |
| Scientific name | Fritillaria koidzumiana Ohwi |
| Synonyms | Fritillaria japonica Miquel var. koidzumiana (Ohwi) H. Hara & Kanai |
| Common name | (Japanese common name) koshi-no-ko-baimo (コシノコバイモ, 越小貝母 [Koshi's tiny baimo (Koshi = an old name of Niigata Prefecture, baimo = Japanese pronunciation of Chinese common name of Fritillaria thunbergii)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Fukushima Prefecture and east of Ishikawa Prefecture, mainl in Japan Sea side) |
| (Other nations) none | |
| Habitat | Mountane forest, forest edge |
| Chromosomal number | 2n=24 |
| Description | Plants electing. Scapes 15-20cm tall. Leaves 3-6cm long, 5-18mm wide. Flowers pale yellow perianths 2cm long, flowering in March to May. Perennial plants. |
| Reference | Fritillaria koidzumiana Ohwi |
| Fritillaria Icons | |
| Note | Endemic to Japan. |
| March 2007 at mountane forest in Niigata Prefecture |
March 2007 at mountane forest in Niigata Prefecture |
March 2007 at mountane forest in Niigata Prefecture |
| March 2007 at mountane forest in Niigata Prefecture |