| Family | Cyperaceae |
| Scientific name | Carex neurocarpa Maximovicz |
| Synonyms | none |
| Common name | (Japanese common name) mikoshi gaya [portable shrine sedge] |
| (English common name) none | |
| Distribution | (Japan) Honshu |
| (Other nations) Russia (far east), Korea, China | |
| Chromosomal number | 2n=108 |
| Description | Leaves 2-3mm width. Culms 30-60cm. Flowers inflorescences 3-6cm length, spikelets 4-8mm, flowering in May to June. Perennial plants. |
| May 2007 at lowland swamp | May 2007 at lowland swamp | May 2007 at lowland swamp |