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| March 2008 at Tsukuba Botanical Garden |
March 2008 at Tsukuba Botanical Garden |
March 2008 at Tsukuba Botanical Garden |
| Family | Dryopteridaceae |
| Scientific name | Polystichum retroso-paleaceum (Kodama) Tagawa |
| Synonyms | Polystichum aculeatum (L.) Roth var. retroso-paleaceum Kodama |
| Common name | (Japanese common name) sakage inode [retrorse inode (inode = Polystichum fern)] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku |
| (Other nations) Korea | |
| Chromosomal number | n=41 (2x) |
| Description | Leaves over 1m long. Summer green. Terrestrial. Perennial plants. |
| Reference | Polystichum retroso-paleaceum (Kodama) Tagawa |
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| March 2008 at Tsukuba Botanical Garden |
March 2008 at Tsukuba Botanical Garden |
March 2008 at Tsukuba Botanical Garden |
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| March 2008 at Tsukuba Botanical Garden |
