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| September 2008 at Tsukuba Botanical Garden |
September 2008 at Tsukuba Botanical Garden |
September 2008 at Tsukuba Botanical Garden |
| Family | Agavaceae (also placed in Liliaceae) |
| Scientific name | Hosta rupifraga Nakai |
| Synonyms | none |
| Common name | (Japanese common name) hachijo-giboushi (ハチジョウギボウシ, 八丈擬宝珠 [meaning: Hachijo Island giboushi (giboushi = a traditional metal ornament of bridges)] |
| (English common name) none | |
| Distribution | (Japan) Hachijo Island |
| (Other nations) none | |
| Habitat | Rocky rim of Mt. Nishi |
| Chromosomal number | 2n=60 |
| Description | Leaves 8-13cm long. Scapes 30-40cm tall. Flowers pale purple corollas ca. 4cm long, 6 stamens, flowering in August to September. Perennial plants. |
| Reference | H. rupifraga Nakai 1930 [PDF] |
| Note | Rare species. |
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| September 2008 at Tsukuba Botanical Garden |
September 2008 at Tsukuba Botanical Garden |
September 2008 at Tsukuba Botanical Garden |
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| September 2008 at Tsukuba Botanical Garden |
