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| March 2007 at mountane forest in Niigata Prefecture |
March 2007 at mountane forest in Niigata Prefecture |
| Family | Aristolochiaceae |
| Scientific name | Asarum megacalyx F. Maekawa |
| Synonyms | Heterotropa megacalyx F. Maekawa |
| Common name | (Japanese common name) koshi-no-kan-aoi (コシノカンアオイ, 越寒葵 [meaning: Koshi winter hollyhock (Koshi = an old name of Niigata prefecture)]) |
| (English common name) Japanese wild ginger | |
| Distribution | (Japan) Honshu (Japan Sea side; Yamagata Prefecture, Niigata Prefecture, Toyama Prefecture, Ishikawa Prefecture, Fukui Prefecture) |
| (Other nations) none | |
| Habitat | Mountane forest |
| Chromosomal number | n=12 |
| Description | Plants creeping. Leaves 6-12cm long, non hair. Flowers purple (merely green) 2.5-4cm across, calyx tube 1.5cm across, flowering in January to May (mainly in February to April). Perennial plants. |
| Reference | Asarum megacalyx F. Maek. |
| Asarum megacalyx (Japanese Wild Ginger) | |
| Note | Native to Japan |
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| March 2007 at mountane forest in Niigata Prefecture |
March 2007 at mountane forest in Niigata Prefecture |
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| March 2007 at Yukiguni Botanical Garden |
March 2007 at Yukiguni Botanical Garden |
March 2007 at Yukiguni Botanical Garden |
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| March 2007 at Yukiguni Botanical Garden |
March 2007 at Yukiguni Botanical Garden |
