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| May 2009 at Tsukuba Botanical Garden |
May 2009 at Tsukuba Botanical Garden |
May 2009 at Tsukuba Botanical Garden |
| Family | Cyperaceae |
| Scientific name | Eleocharis parvinux Ohwi |
| Synonyms | Eleocharis palustris (L.) Roemer & Schultes subsp. parvinux (Ohwi) T. Koyama; Eleocharis palustris (L.) Roemer & Schultes var. parvinux (Ohwi) T. Koyama |
| Common name | (Japanese common name) kotubu-numa-hari-i (コツブヌマハリイ, 小粒沼針藺 [meaning: tiny swamp needle rush]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Kanto region) |
| (Other nations) none | |
| Habitat | Swamp |
| Chromosomal number | unknown |
| Description | Plants culms 30-50cm tall. Flowers 8-15mm long, flowering in July to October. Perennial plants. |
| Reference | Molecular phylogeny of Japanese Eleocharis (Cyperaceae) based on ITS sequence data, and chromosomal evolution |
| Note | Rare species. Endemic to Japan. |
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| May 2009 at Tsukuba Botanical Garden |
May 2009 at Tsukuba Botanical Garden |
May 2009 at Tsukuba Botanical Garden |
