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| October 2008 at Tsukuba Botanical Garden |
October 2008 at Tsukuba Botanical Garden |
October 2008 at Tsukuba Botanical Garden |
| Family | Eriocaulaceae |
| Scientific name | Eriocaulon heleocharioides Satake |
| Synonyms | none |
| Common name | (Japanese common name) koshigaya hoshi kusa (コシガヤホシクサ, 越谷星草 [meaning: Koshigaya City stars grass]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Saitama Prefecture, Ibaraki Prefecture) |
| (Other nations) none | |
| Habitat | River, pond |
| Chromosomal number | unknown |
| Description | Leaves linear 7-15cm long, 2-3mm wide. Scapes 12-28cm tall Flowers ca. 2mm long, flowering in September to October. Annual plants. |
| Reference | Eriocaulon cinereum R. Brown |
| Note | Natural plant might be extinct. Tsukuba Botanical Garden has been triying to cultivate Eriocaulon heleocharioides Satake. |
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| October 2008 at Tsukuba Botanical Garden |
October 2008 at Tsukuba Botanical Garden |
October 2008 at Tsukuba Botanical Garden |
