| Family | Aristolochiaceae |
| Subfamily | Asaroideae |
| Scientific name | Asarum asaroides (C. Morren & Decaisne) Makino |
| Synonyms | Heterotropa asaroides C. Morren & Decaisne |
| Common name | (Japanese common name) tairin-aoi (タイリンアオイ, 大輪葵 [meaning: big flower winter hollyhock]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Shimane Prefecture, Yamaguchi Prefecture), Kyushu (Fukuoka Prefecture, Saga Prefecture, Kumamoto Prefecture) |
| (Other nations) none | |
| Habitat | Mountane forest |
| Chromosomal number | 2n=24 |
| Description | Leaves 8-12cm long, 5-12cm wide. Flowers dark purple or green ca. 3-4cm across, flowering in April to June. Perennial plants. |
| Reference | Asarum asaroides (C. Morren & Decne.) Makino |
| Note | Native to Japan |
| April 2009 at a Nursery |
April 2009 at a Nursery |