| Family | Aristolochiaceae |
| Subfamily | Asaroideae |
| Scientific name | Asarum blumei Duchartre |
| Synonyms | Heterotropa blumei (Duchartre) F. Maekawa |
| Common name | (Japanese common name) ranyou-aoi (ランヨウアオイ, 乱葉葵 [meaning: variegated leaf winter hollyhock]) |
| (English common name) none | |
| Distribution | (Japan) Honshu |
| (Other nations) none | |
| Habitat | Mountane or subalpine forest |
| Chromosomal number | 2n=24 |
| Description | Plants ca. 10-20cm tall. Leaves 5-15cm long. Flowers white ca. 2.5-3cm across, flowering in March to May. Perennial plants. |
| Reference | Asarum blumei Duch. |
| Note | Rare species. |
| April 2010 at my home |
April 2010 at my home |
| April 2010 at my home |
| April 2010 at my home |