| Family | ARISTOLOCHIACEAE |
| Genus species | Asarum yakusimense Masam. |
| Bibliography | Trans. Nat. Hist. Soc. Formosa 23: 207 (1933) |
| Native Range | Japan (Yakushima) |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Description | leaves ca. 8cm long, deltoid-ovate, abaxially thinly pubescent, adaxially glabrous, flowers subsessile, 15-20mm, tube of perianth shortly cylindrical |
| Size | 5-10cm |
| Color | dark purple |
| Bloom | early spring |
| Ca | |
| Type | perennial |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed when ripe or as soon as possible division in early and late summer |
| Synonyms | Asarum hirsutisepalum Hatusima Heterotropa yakusimensis (Masam.) F.Maek. ex Nemoto |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |