| Family | ARISTOLOCHIACEAE |
| Genus species | Asarum asperum F.Maek. |
| Synonyms | Asarum constrictum F.Maek. |
| Asarum minus F.Maek. | |
| Heterotropa aspera (F.Maek.) F.Maek. | |
| 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 | carpet |
| 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 |
| Territory |
Asia-Temperate
Eastern Asia (Japan) |
| Bibliography | Plants of the World online powo.science.kew.org International Plant Names Index www.ipni.org |
| Comments | ARISTOLOCHIACEAE
asperum geaster (F.Maek. ex Akasawa) T.Sugaw., Fl. Japan [Iwatsuki & al., eds.] 2a: 375 (2006)
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