| Family | ARISTOLOCHIACEAE |
| Genus species | Asarum asperum F.Maek. |
| Bibliography | Bot. Mag. [Tokyo} 46: 573 (1932) |
| Native Range | c. & s. Japan |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Description | leaves solitary, ovate-orbiculate, 6-8cm long, on base sagittate, dully green, obtuse, abaxially glabrous, tube of perianth apically distinctly tapered, lobes patent, 8-10mm |
| Size | 5-10cm |
| Color | 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 constrictum F.Maek. Asarum minus F.Maek. Asarum oblongum (F.Maek.) O.C.Schmidt Heterotropa aspera (F.Maek.) F.Maek. Heterotropa constricta (F.Maek.) F.Maek. Heterotropa oblonga F.Maek. |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |