| Family | ARISTOLOCHIACEAE |
| Genus species | Asarum crassum F.Maek. |
| Bibliography | Bot. Mag. (Tokyo) 46: 568 (1932) |
| Native Range | Japan (Kyushu) |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Description | leaves broadly ovate, 10-15cm long, shortly acuminate, rather thick and shiny dark green, flowers densely white pubescent, tube of perianth globular, lobes patent |
| Size | 10-15cm |
| Color | blackish purple |
| Bloom | 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 | Heterotropa crassa (F.Maek.) F.Maek. |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |