| Family | Aristolochiaceae |
| Scientific name | Asarum kooyanum Makino |
| Synonyms | Heterotropa kooyana (Makino) F. Maekawa |
| Common name | (Japanese common name) koya kan-aoi (コウヤカンアオイ, 高野寒葵 [meaning: Mt. Koya winter hollyhock]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Wakayama Prefecture) |
| (Other nations) none | |
| Habitat | Mountane forest |
| Chromosomal number | n=12 |
| Description | Leaves 6-10cm long. Flowers ca. 2cm, flowering in March to May. Evergreen. Perennial plants. |
| Reference | Asarum kooyanum Makino |
| Population Structures of Asarum kooyanum var. brachypodion and Egg Densities of Luedorfia japonica Laid on it in Secondary Forests at Kaisho-cho in Seto City, Aichi Prefecture in the Spring of 1999. | |
| Note | Native to Japan |
| May 2011 at my home |
May 2011 at my home |
May 2011 at my home |
| May 2011 at my home |