| Family | Juncaceae |
| Scientific name | Juncus krameri Franchet & Savatier |
| Synonyms | none |
| Common name | (Japanese common name) tachi-kogai-zekisho [standing kogai shaped sekisho like weed (kogai = a traditional hairdressing tool, sekisho = Acorus gramineus Solander ex Aiton)] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Russia (Far East), Korea, China | |
| Chromosomal number | unknown |
| Description | Plants electing 10-50cm. Flowers tepals 3-3.5mm length, flowering in July to September. Perennial plants. |
| Reference | Juncus krameri Franchet & Savatier |
| Note | Rare species. |
| August 2007 at Tsukuba Botanical Garden |
August 2007 at Tsukuba Botanical Garden |
August 2007 at Tsukuba Botanical Garden |
| August 2007 at Tsukuba Botanical Garden |
August 2007 at Tsukuba Botanical Garden |
August 2007 at Tsukuba Botanical Garden |
| July 2007 at Tsukuba Botanical Garden |
July 2007 at Tsukuba Botanical Garden |
July 2007 at Tsukuba Botanical Garden |