| Family | Fumariaceae (alt. Papaveraceae) |
| Scientific name | Corydalis heterocarpa Siebold & Zuccarini var. japonica (Franchet & Savatier) Ohwi |
| Synonyms | Corydalis platycarpa (Maximovicz) Makino; Corydalis wilfordii Regel var. japonica Franchet & Savatier |
| Common name | (Japanese common name) ki-keman [yellow keman (keman = an ornament which is used in Buddhism temple)] |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) none | |
| Chromosomal number | 2n=24? |
| Description | Plants electing 40-60cm tall. Leaves 10-25cm long. Flowers yellow 15-20mm, flowering in April to May. Winter annual plants. |
| Reference | Corydalis heterocarpa Siebold et Zucc. var. japonica (Franch. et Savat.) Ohwi |
| Note | Native to Japan. |
| April 2006 at Koishikawa Botanical Garden |
April 2006 at Koishikawa Botanical Garden |
April 2006 at Koishikawa Botanical Garden |
| April 2006 at Koishikawa Botanical Garden |
April 2006 at Koishikawa Botanical Garden |
April 2006 at Koishikawa Botanical Garden |