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| April 2008 at Kochi Prefecture Makino Botanical Garden |
April 2008 at Kochi Prefecture Makino Botanical Garden |
| Family | Araceae |
| Subfamily | Aroideae |
| Tribe | Arisaemateae |
| Scientific name | Arisaema iyoanum Makino |
| Synonyms | Arisaema akiense Nakai; Arisaema iyoanum Makino forma viridencens Makino; Arisaema iyoanum Makino subsp. viridencens Makino; Arisaema iyoanum Makino var. viridescens Makino |
| Common name | (Japanese common name) omogou ten-nanshou (オモゴウテンナンショウ, 面河天南星 [Omogo Valley Arisaema]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Hiroshima Prefecture, Yamaguchi Prefecture), Shikoku (Ehime Prefecture, Kochi Prefecture) |
| (Other nations) none | |
| Habitat | Mountain forest |
| Chromosomal number | 2n=28 |
| Description | Plants electing 12-80cm tall. Leaves sigle, 11-14 leaflets each 3-24cm long, petioles 11-15cm long. Flowers pale green spathes 11-15cm long, flowering in May. Perennial plants. |
| Reference | Cytology and systematics in JapaneseArisaema (Araceae) |
| Note | Rare species. Endemic to Japan. |
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| April 2008 at Kochi Prefecture Makino Botanical Garden |
April 2008 at Kochi Prefecture Makino Botanical Garden |
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| April 2008 at Kochi Prefecture Makino Botanical Garden |
