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| May 2007 at Imperial Palace |
May 2007 at Imperial Palace |
| Family | Cyperaceae |
| Scientific name | Carex japonica Thunberg |
| Synonyms | none |
| Common name | (Japanese common name) higo-kusa (ヒゴクサ, 肥後草 [meaning: higo weed (higo = thin stick whittled from bamboo piece)]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China | |
| Habitat | Forest |
| Chromosomal number | 2n=62 |
| Description | Culms 20-40cm tall. Leaves 2.5-4mm wide. Flowers male sikelets 1.5-3cm long at top, female spikelets 1-2cm long at side, flowering in April to June. Perennial plants. |
| Reference | Carex japonica Thunb. |
| Note | Carex japonica Thunberg is not a synonym of Carex alopecuroides D. Don ex Tilloch et Taylor var. chlorostachya C. B. Clarke (syn. Carex chlorostachys Steven; Carex doniana Sprengel; Carex japonica Thunberg subsp. chlorostachys (Kükenthal) T. Koyama; Carex sasakii Hayata). Carex alopecuroides D. Don ex Tilloch et Taylor var. chlorostachya C. B. Clarke is far bigger species than Carex japonica Thunberg. |
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| May 2007 at Imperial Palace |
May 2007 at Imperial Palace |
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| May 2007 at Imperial Palace |
May 2007 at Imperial Palace |
